fastchg: change fast charge to override the high current GPIO, not the USB cable mode

Conflicts:
	arch/arm/mach-omap2/board-tuna-connector.c
fastchg: Remove vestigial fsa9480 "force AC" switch.
fastchg: Only enable fast charge GPIO as long as we actually have some charging to do.
Enable fast charge by default.
BMP180: Report temperature through ABS_MISC.
BMP180: Finish temperature reporting.
BMP180: Fix typo.