* Because we're using #ifdef in set_light_buttons(),
defining VAR_BUTTON_BRIGHTNESS to anything, including 0,
results in the button brightness code being enabled
* That results in broken touchkey backlight for devices
that don't override the samsung_lights header, or defined
this macro to 0 in their device's samsung_lights header
* Comment out the macro to correct this logic
Change-Id: Icf554b0deac975f729f1a70e517341dae74f3657
The old exynos4x12 lights HAL had logic for scaling the brightness of
lights according to the light's type and also scaling each R/G/B colour.
Bring this logic across, and make the battery LED not eye-searing at
night.
Based on work by Daniel Hillenbrand.
REGRESSION-66
Change-Id: Ia6108468f57c3b6c6a1a68da76a1c3362fd982a5
Paul Keith