Move SIM select logic from SimSelectNotification to Telephony.

SimSelectNotification used to listen to SIM_STATE_CHANGED from Telephony
and do checkings to decide whether to pop up notification and
SimDialogActivity. The logic needs updated and only Telephony knows it
well. So this change moves the logic into Telephony. SimSelectNotification
only listens to Telephony's decision, brings up notification and trigger
SimDialogActivity.

Bug: 128645056
Test: sanity and manual
Change-Id: I6153e27dd00dd9cdf8682f135eb39f8af3a75608