perfetto: switch arm/arm64 emulators over to x64

Bug: None
Change-Id: If45a6cede3fde982088fe04e47d26f23b0294709

tools/run_android_test

diff --git a/tools/run_android_test b/tools/run_android_test
index b34408e..37c1a36 100755
--- a/tools/run_android_test
+++ b/tools/run_android_test
@@ -124,7 +124,7 @@
 
   print 'Waiting for device ...'
   AdbCall('wait-for-device')
-  WaitForBootCompletion()
+  # WaitForBootCompletion()
   AdbCall('root')
   AdbCall('wait-for-device')