gps changes

Change-Id: Ib48af7043d73088a74fcad1bf21cf1c8ced60b00
Add modified loc_api, build gps from source

Change-Id: I3f176162c0e0aafd5402758dd66a7a72340a3bed

Conflicts:

	BoardConfigCommon.mk
	common.mk
	prebuilt/etc/gps.conf
	ramdisk/init.msm7x27.rc
add gps.conf

Change-Id: Ieebe1b0b3c1cec16ec096a9480ffede9df78eaa1