[CP-1841] Distorted playback and poor device control responsiveness

Fixed problem with an unresponding device after playing specific WAV files.
WAV files encoded with ADPCM are not supported now by the devices.

[MOS-982] Recognizing WCDMA network access method for 3G in GUI

Ditto

[MOS-933] Added translations for Bluetooth connection status

Ditto

[MOS-981] Fix crash on phone turn off

Fix of the issue that the phone
might sometimes crash on shutdown.

[MOS-981] Magnetometer driver cleanup

Cleanup of the magnetometer driver.
Added checks of all I2C operations
return codes and error messages
in case of failures.

[MOS-977] Added VoLTE support in additional countries

Added VoLTE support in Poland, Germany, Denmark, United Kingdom,
 Netherlands, Canada and Austria.

[BH-1671] Reinit eMMC driver

Reinit eMMC driver if write/read transmission
failed.

[BH-1661] E-ink display power management tweaks

Tweaks and changes required to optimize
power consumption for Harmony.

[CP-1939] Difference in displaying file name for list and for loop play function

Fixed problem with displaying end of title when playing song in loop was
selected.

[CP-1938] UI issues when uploading multiple copies of a specific file

Fixed problem with badly calculating characters to show which cause a
problem with displaying text on UI.

[CP-1942] Re-adding the same file results in an increase in the amount of occupied space

Fixed problem with adding files with the same name resulting in increasing its size
instead of replacing the file.
USB Stack changes.

[BH-1672] Add logging of eMMC parameters

Added logging of eMMC storage card
parameters so that it's easy to
determine what chip is installed
in the device the logs are from.

[MOS-000] Cleanup of translation files

Removed unused, duplicated entries
Sorted up jsons

[CP-1837] Fix MTP crashes

Update usb_stack submodule.

[MOS-000] Reworked translation verification tool

Added removal of unused keys in files
Refactored code

[CP-1797] Low battery connection with mc is possible

Add a reason field to USBSecurityEndpoint reson when device is locked.

[CP-1852] Too many user files removes default relaxation audio from the list

Changed order in which files in Relaxation are displayed
Added error message when files limit is exceeded

[MOS-636] Added MMI/USSD confirmation

USSD/MMI codes are now confirmed after they are sended.

[MOS-000] Fixed minor issue in db migration script

* Removed doubled copyright header from 'up/down/devel.sql' when committing
databases.
* During installing, 'devel.sql' was created even if specific revisions
didn't contain one.
* Removed unnecessary product-specific .lua scripts.

[BH-000] Update changelog for 1.8.2 and 1.9.0

.