Fixed package binding issue

Fixed several binding issues found. Now we always wait
for carrier config changed event before we start binding.
Also instead of doing binding works in the main thread,
we now do it in the handler's thread.

Test: Manual
Bug: 127495898
Bug: 127497122
Change-Id: I0e45c5b5f964173eddb014ef14414a13425f8a15
2 files changed