Adding priority flag for NI and AGPS callbacks

Adding priority flags while registering NI
handling callback and AGPS handling callback.
To ensure that both NI and AGPS are always
handled by our stack instead of Android
Framework stack.

CRs-Fixed: 2059476
Change-Id: I585328491a7f5d9099287924a03d7710f4e5fda9
10 files changed