Use arm instruction set with clang 7.0 LTO

* surfaceflinger.so uses LTO.
  clang 7.0 LTO inlined more code and some references
  are too far away to use thumb instructions.

Bug: 72619014
Test: run Forrest
Change-Id: Ia09931e93a170ac58007f80da2d580bb9b9635a6
12 files changed