[EGD-7774] Fix compile on ARM GCC11

Fix compile on ARM GCC11

Signed-off-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>

[EGD-7754] Dates bumped in disclaimers

Dates bumped from 2020 to 2021.

[BH-872] Fix encoder hadnling

interrupt driven encoder handling

[BH-845] Add battery indicator

Add battery indicator

[BH-944] Fix double click

Fix double click
Add latch state retention between runs

[BH-926] Fix hw startup battery crash

Fix fw startup battery crash

[BH-920] Fix display rotation

Fix display rotation as it was upside down.

[BH-651] Bell fuel gauge

PR and rebase change

[BH-650] Bell battery charger

After rebase and PR

[BH-819] Fix illegal dependencies in bsp

Break circular dependencies in the BSP module. Fix some missing
dependencies which surfaced after fixing BSP.

Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>

[BH-907] Split utils module into components

Split module-utils into smaller components for better dependency
management. Fix many dependencies throughout the project.

Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>

[BH-885] Fix Bell hw

Increased stack for apps and service
Deleted invalid call to uninitialized SML in BatteryCharger
Moved torch handling from common code to pure specific

[BH-908] Fix macros header location

Remove duplicated header for linux; move header for rt1051 to the same
tree as for linux.
_exit.c uses os so it should be placed in the os.

Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>

[BH-860] Decouple charger driver from system

Remove system dependency from charger driver implementation. Remove
circular, lambda driven dependency between charger and brownout
detector. Remove event manager dependency in driver as well.
Encapsulate some of charger logic in introduced battery controller.

Extract path configuration to the separate target to decouple charger
from vfs middleware.

Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>

[BH-715] Add switches handling

Add Bell switches handling including latch support.

[BH-511] Add encoder UI events handling

Add encoder rotation event handling.

[EGD-4808] Add band gap switching

To reduce the power consumption, we switch the band gap
to the low power mode.

[EGD-4809] Add LDO switching

To reduce the power consumption, we switch LDO
to the low power mode.

[BH-510] Knob driver

Add knob driver for the rotary encoder.

Signed-off-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>

[EGD-4875] Add internal load resistor switching

To reduce the power consumption, we disconnect
internal load resistor