Listen TRANSPORT_BLUETOOTH network change in GnssLocationProvider

TRANSPORT_BLUETOOTH is a essential network type for wearable device.

For non-master branch, only listen to Bluetooth on wearable device.

Bug: 64881794

Test: Trigger Bluetooth on/off on watch, check if UpdateNetworkState()
got called.

Merged-In: I30e39943220597987320ea7843d7d36827fdd0c7

Change-Id: I30e39943220597987320ea7843d7d36827fdd0c7
(cherry picked from commit d6886710)