[1/2] LED: Battery Light

==Requires==
in device tree's overlay/frameworks/base/core/res/res/values/config.xml:

    <!-- Is the battery LED intrusive? Used to decide if there should be a disable option -->
    <bool name="config_intrusiveBatteryLed">true</bool>

    <!-- Does the battery LED support multiple colors? Used to decide if the user can change the colors -->
    <bool name="config_multiColorBatteryLed">true</bool>

PS6: enable by default
PS7: rmv public.xml additions
PS8: incompatible types getInteger to getBoolean
PS9: Works

Signed-off-by: Andre Saddler <dresadd09691@gmail.com>
Change-Id: Iadaba42c1752e31cc77804e5b0d01788724c35c8