[NAN] Add COARSE_LOCATION permission check to NAN discovery

NAN discovery can expose location based on service signatures.

(cherry-pick of commit e1d8a5a6fc3661f226afff3fde59a3eb2c06d718)

Bug: 31907534
Test: unit test + integrated (sl4a) testing
Change-Id: Iec0fae507dfdae65fe08ab6e2ddb89334c15def5
1 file changed