WiFiInstaller: update usage of WifiManager#addOrUpdatePasspointConfiguration

WifiManager#addOrUpdatePasspointConfiguration is updated to return
void and throw exception on failure instead of a boolean, so update
the callsite accordingly.

Bug: 35856174
Test: make -j32
Change-Id: Id56ee82916397a26432a22addfb59ffddddefe79
Merged-In: Id56ee82916397a26432a22addfb59ffddddefe79
1 file changed