mixer_paths: Fix out-of-scale controls

SPK DRV Volume is 0->8. The closest to stock's 90% is "7"

Change-Id: I4fe41cfabcfafeb9a1f12ac420760a8febc50077
Use input switches to detect audio jack insertions

Change-Id: I77b980d4aa7bccea68dc5c7ae03f2368fc3df114
init.g2.rc;Correct BT low power connections

Change-Id: Icab0e904bc36f9026172c860841b658bbed98576