Add SUPL-specific network bcast

Move SUPL CONNECTIVITY_ACTION bcasts to a different, hidden intent
to reduce the churn of apps when SUPL comes/goes.

Short term hack until SUPL moves to use the new APIs and there's
no bcast.

bug:23350688
Change-Id: I3dc14b42afa72465260aa41ccedfe1df27baabd9
2 files changed