Fix letterboxed app input info not added

Launcher remote animation requires permission ACCESS_SURFACE_FLINGER to
set input info. Use pendingTransaction instead of syncTransaction to let
system_server apply input info with permission.

Flag: EXEMPT bugfix
Fix: 352717194
Bug: 345729003
Test: atest LetterboxTest
      atest SizeCompatTests
      atest LetterboxUiControllerTest
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:4f08ec1ddd88608f09c2c995cfc6e11735d50797)

Merged-In: I66d0b1dbd6aad4639e8e25994577232e388f47bd
Change-Id: I66d0b1dbd6aad4639e8e25994577232e388f47bd