Add gnssRequestLocationCb to IGnssCallback.hal and injectBestLocation

to IGnss.hal

- add the gnssRequestLocationCb to IGnssCallback.hal, with a boolean
flag to supply with or without GNSS information, to request location for
fast TTFF (or error recovery).

- correspondingly add the injectBestLocation to IGnss.hal for the
location provider to inject the location.

Bug: 72341681
Test: Copied the same change and test to v1.0 and manually ran vts
tests. All passed.

Change-Id: I2e9d11603a2f16ef52d6c1556be75bdbcd8d0e80