BoardConfig cleanup + add kernel paths

Change-Id: Iaa3201ab8d289abd82c046ab1c1d00cbd77378b5
Move powervr.ini to configs

Change-Id: I95be155867ca334992e56120766f6ec5c6aac49b
add hostapd driver

Change-Id: I28c0713270e937194edf598b690e38fb3fb48434