[Settings] Replace TelephonyManager#from()

Replacing TelephonyManager#from() by public API.

Bug: 146752167
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=EuiccPreferenceControllerTest
Change-Id: I8f6e8bc57c20782540f8b26bdeb163d881e70a2e
2 files changed