[automerger skipped] Make CellIdentity#getPlmn() Publicly Accessible am: e69e5b0c9c am: c0c8558a87 -s ours am: a4e5b7ccb8 -s ours am: 5a9c30d35e -s ours

am skip reason: Change-Id I5a79e5339a7e4e1351582f199559801069df0c76 with SHA-1 741d281c60 is in history

Change-Id: I17a280c4a881ae4eccb773d6be6fd22df0f3e033