Allocate and de-allocate mStkService and mStkContext upon
multi_config_change.

Bug: 142514392
Test: unittest
Merged-In: I0e350b59de42d9e2a60d97a3dc1c08e78e1ae62e
Change-Id: I0e350b59de42d9e2a60d97a3dc1c08e78e1ae62e
(cherry picked from commit f961b652a421a684a30f16cc2cbf53ef6d594689)
1 file changed