Moving all vendor specific conf files to /vendor/etc instead of
current /etc folder
CRs-Fixed: 1099981
Change-Id: I4495d8527941959be0847c4722ea8b68ee6c87ee
qcom bsp will handle xtra/agps/ni/time through
qcom propreitary service, and non-qcom bsp will handle
xtra/gps/ni/time through android framework.
xtra url will be queried from modem on qcom bsp,
and read from gps.conf from non-qcom bsp.
Change-Id: Ib54a1596caa65f7aa0358f639640c3d1074980e7
