Settings: Phone process crash in SIM Status.

the SimStatus fragment not attached to activity.
when use method of getResource will forced close.
add isAdded method to judge.
make sure phoneStateListener that there is no reference
left at TelelphonyManager for the previous object
Change-Id: I6d8c7caf3cebd916bd968515da2b384bb9e03a3b
CRs-Fixed: 1054925