Added correct TalkBack support for QSCarrier

Added new MobileIconGroup to TelephonyIcons for SIMs that are not set as
default for mobile data. This group behaves identically to DATA_DISABLES
except that is checked before it so we can assign it correctly.

This addition was made for properly providing content description of
carriers that are not set as default for data. Previously it said
"Mobile Data Off" which could be misleading.

Test: manual with 1 and 2 sims
Test: atest NetworkControllerDataTest NetworkControllerSignalTest
Bug: 123299825
Change-Id: Ia9e085b6296ff8df861e1e40bf8004b20b0d2c11