Increase FILTER_COMPLETE_TIMEOUT_MS.

The following changes are made in this cl:
- Increased FILTER_COMPLETE_TIMEOUT_MS from 10min to 12min
- Protect addToCallbacks() with mFilterLock

Bug: 289098409
Test: Flashed build on raven-userdebug and performed basic functionality tests,
atest CarrierServicesSmsFilterTest

Change-Id: Icb075ba3b125e42ac3279da021b88228fab4bc6b