[BH-2002] Fix crash when connected with broken USB cable

Fixes of the issues that would cause device
crash when connected with broken USB cable:
* fixed memory leaks in VCOM init and deinit
functions;
* guarded accessing desktopWorker object in
message handlers, as messages are asynchronous
and might arrive after worker has already been
destroyed. Not the cleanest solution, but
does the trick

[BH-1776] Grinn USB fixes

Fixes and improvements implemented by external
company Grinn, expanding the set of supported
chargers.

[BH-1770][BH-1677] Update fsl drivers

Now the system uses 2.14.0 version.
Add only necessary drivers:
- pit
- pmu
- rtwdog
- snvs_hp
- snvs_lp
- src
- trng
- wdog
- gpio
- gpt
- lpi2c
- lpuart
- lpuart_edma
- common
- common_arm
- dmamux
- edma
- flexram
- flexram_allocate
- clock
- cache
- CMSIS
- dcp
- iomuxc

Changed speed of the USDHC clock from ~109MHz to ~81MHz.
Also changed bus timing from kMMC_HighSpeedTiming to
kMMC_HighSpeed200Timing for better efficiency.

[BH-1863] Fix deleted file popup showing in Relaxation

* Fix of the issue that 'File has been
deleted' popup would show in Relaxation
app at the end of playback if the
playback was paused at least once,
even though the file wasn't actually
deleted.
* Added very basic audio decoder error
handling and propagation mechanism.
* Minor refactor around several
audio-related parts.

[BH-1657][BH-1833][BH-1854] Add WFI and SDRAM self-refresh mode

* Added mechanism enabling CPU to
enter WFI mode when the OS is
in idle, what results in large
power consumption reduction.
* Added mechanism to switch SDRAM to
self-refresh mode before entering
WFI, what resulted in further power
consumption reduction.

[MOS-996] Disable MTP protocol

Disable MTP file transfer protocol.

[CP-2184] Fix issue with reset events getting lost

Update of usb_stack submodule version in main repo.

[BH-1757] Fix Hard Fault handling

Added a critical section when handling Hard Faults
co-author @Lefucjusz

[MOS-1012] Fix occasional crash when unplugging Pure from PC

Fix of the unhandled error issue that resulted
in occasional device crash when disconnecting
from PC with MC app running.

[MOS-1006] Fix modifying data in .text section when setting SN

Fix of the issue that setting serial number in
USB stack resulted in writing to read-only
.text section, what causes undefined behavior.

[MOS-184] Fix unit tests not failing on duplicate test case

Fix of the issue that unit tests build would not
fail when unit test contained 2 test cases with
identical name.
Changed Catch2 submodule to local fork.
Minor unit tests and build target docs cleanup.

[MOS-997] Fix failing sync with Mudita Center

Fix of the issue that sync with Mudita Center
would fail often after changes introduced in
CP-1968.

[MOS-183] Fix RT1051 debug build

Fix of multiple issues that resulted
in debug build failing.

[CP-1968] Disconnecting the device during file upload causes problems with the USB

Fixed the problem with an endless loop while sending data
when USB is already disconnected.

[BH-1706] Fix inaccessible MTP on Harmony

Fix of the issue that Harmony's MTP
was constantly locked after MOS-686
fix, as the mechanics of unlocking
was not handled for Harmony at all.

[CP-2014] Fix file list isn't always loaded

Fix critical sections for send/recv virtual com functions.

[MOS-686] Fixed MTP availability only after phone unlocked 2

This is fix for Windows. It's fix for previous fix witch:
Fixed file access via MTP even when phone is not unlocked.
Now access is granted when the phone is unlocked by the user
entering a passcode. If the phone is not passcode protected
(passcode is nor set) then access to the files is always possible via MTP.

[MOS-686] Fixed MTP availability only after phone unlocked

Fixed file access via MTP even when phone is not unlocked.
Now access is granted when the phone is unlocked by the user entering
a passcode. If the phone is not passcode protected (passcode is nor set)
then access to the files is always possible via MTP.

[BH-1595] USB reset procedure

* Fixed incorrect reset procedure
* Minor refactor

[BH-1595] USB charger detection issues

* Fixed issues with USB charging port detection
* Fixed memory leak in usb_stack/OS integration layer
* Fixed incorrect handling of software timer
* Minor cleaning/refactor.

[BH-1595] Turned off USB/PC charging

Charging enabled only for a dedicated charger. Users won't be able
to charger while connected to the PC.