Fix odcpi feature when Location is off in settings

Assure gnssInterface is initialized during call to
getGnssInterface to assure GnssAdapter is created
and able to accept calls like odcpiInit

Bug: 152261445

Test: Verified ODCPI is initialized at boot-up with location settings off.
CR-fixed: 2644833
Change-Id: I60adea4d9a0d174244b2441ce14093daf5c20efb
1 file changed