drivers: leds: Add support for led breath rate and LUT pattern switch control

- Extracted from MiCode/Xiaomi_Kernel_OpenSource
  from branch 'phoenix-r-oss'
- Fixed coding style

Change-Id: I9950b7c200407e4c3714dd1ca046d03a744a308a
Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>