g2: Set BOARD_USES_QCOM_HARDWARE and make changes for it

Change-Id: Iaa53448494b803a79bd2303ff90be620fb450e87
g2: Build voice processing effect descriptors

Change-Id: I151c779aa515b1672eb6a4b76b79bf33305ca6bc
g2: TEMP: Set selinux to permissive

Change-Id: I509d633839db61278fe6acdd1d33bce37279df77