serrano: Support base defconfig for US variants

Change-Id: I50637f5b3d7d5959f138f2811257478d62b6f7f2
serrano: Add support for multi color led in liblights

 * For the Sprint variant (possible other US variants too)

Change-Id: Ibb74162acaece431e6785f0ba51e3bf6c0120821
serrano: Add LED permissions

 * For Sprint variant

Change-Id: Icda9092387d3ddfdc939b28136cdcb39f9d0619c
Merge branch 'cm-11.0' into kk_mkt