Change SUPL network request parameters for requestRouteToHostAddress

CL aosp/940825 extends support for requestRouteToHostAddress in the
ConnectivityService for SUPL network setup requests originating from
pre-gnss@2.0 HALs. For this to work, a corresponding change is also
needed in the way the SUPL network requests are constructed in the
GnssNetworkConnectivityHandler class.

Bug: 121222025
Test: Verified on a Pixel device with gnss@1.1 HAL.
Change-Id: I420393c74926d9fd83e939f5380fe69abaa486f6