Update HTC baterry driver

code taken from here : https://github.com/sultanxda/sultan-kernel-faux-seb-ION/commit/ba07546e9306d785b27f83f166074bf7bf4b299c#diff-9

Change-Id: I30c2eb1aece56d259cfc9b28ff3d9b2bf9f938bc

Conflicts:
	arch/arm/mach-msm/htc_battery_8x60.c