Roll clang + fix run_android_test

Clang:
  -the sub-revision was mismatching chromium's (1 vs 8)
tools/run_android_test:
 - adb push was unnecessarily noisy, spamming logs.
 - the TEST_RET_CODE boilerplate was unnecessary,
   adb shell propagates the exit code properly.
   It check_output() was causing the output to be
   retained until the end with no reason.

Change-Id: I39cba05fb5aa2db5cf4afd2c52ee5daade6dce13
Test: ci.perfetto.dev is happy