Revert "gps: modify NMEA_PROVIDER to Modem processor"

This reverts commit ea0e515aae907b3dbef68bbc591654c21cea7f0b.
Revert "Overlay: Enable AGPS location setting"

This reverts commit 2784362ab2b665cdd6170689671e227817e8aef7.
Revert "gps: Reduce debug level"

Change-Id: Ib4e5aab1d9764e3df66f4a5c020d5d9322adc57c (reverted from commit 371d3c0eb4aa21db3e9280fe828f776880d5f9b1)