Move getMsisdn and getLine1Number to READ_PHONE_NUMBERS

This is done to get dangerous stuff off the READ_PHONE_STATE permission.
Also keeping READ_PHONE_STATE for apps targeting old SDK versions.
Refactored getPhoneNumber to allow READ_PHONE_STATE pre-R

Bug: 136160623
Test: atest SubInfoControllerTest, TelephonyPermissionsTest
Change-Id: I5c0adcbe432ffcbb22ac8959792ee60da7039f15
Merged-In: I5c0adcbe432ffcbb22ac8959792ee60da7039f15