jf: bring gps flag down from msm8960-common

* preemptive merge of the msm8960-common change for the new
  jf branch
* this won't be in the new branch, but we do need it for this branch

Change-Id: Icdb4f4ab68ce9634abfccd84cce2c3a535d027ab
(cherry picked from commit 4411634378d78c55bbda87224cf845a02d4c5178)