disallow changing from multi-sim to single-sim for carrier apps

Bug: 125122645
Test: build
Change-Id: I511d95772c3b662279d6dc008bdb58ffc45398cb
Merged-In: I511d95772c3b662279d6dc008bdb58ffc45398cb
(cherry picked from commit 1731878a79c774bec34e1c6056fb653e75b9ced6)
1 file changed