arm: mach-msm: board-8064: Add charging notification support for leds

1. Add support for green led with "battery-full" trigger so
that the led turns on when the battery reports full.
2. Set "battery-charging" trigger for red led so that the led
glows when the battery is charging.

Change-Id: I4a8adcf2c6be9edd18a8ec7339dc3750eb292770

CRs-fixed: 574345 574350

Signed-off-by: Abinaya P <abinayap@codeaurora.org>