Enforce permission INJECT_EVENTS for injecting to input filter.

Bug: 309426390
Test: atest CtsAccessibilityTestCases:AccessibilityManagerTest
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:e83d6c801bb4f97b9b4b54280ac9e1486e622313)
Merged-In: I4a63583dcd1c7a7c388fb278ec1c1c53c135e934
Change-Id: I4a63583dcd1c7a7c388fb278ec1c1c53c135e934
2 files changed