android: Add logging for local instrumentation test run to help debugging

Currently the builder test-n-tablet has flaky test failure due to timeout in
apk installation.
Adding logging to see which apk spent the most time.

This CL can be reverted after the issue 1004322 is resolved

Bug: 1004322
Change-Id: Ic51694add3666aa0e0442cb6f8c11131e04ae13d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1859904Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: Haiyang Pan <hypan@google.com>
Cr-Commit-Position: refs/heads/master@{#706212}

build/android/pylib/local/device/local_device_instrumentation_test_run.py

@@ -197,11 +197,13 @@ class LocalDeviceInstrumentationTestRun(
         @trace_event.traced
         def install_helper_internal(d, apk_path=None):
           # pylint: disable=unused-argument
+          logging.info('Start Installing %s', apk.path)
           d.Install(
               apk,
               modules=modules,
               fake_modules=fake_modules,
               permissions=permissions)
+          logging.info('Finished Installing %s', apk.path)
 
         return install_helper_internal
 
@@ -210,7 +212,10 @@ class LocalDeviceInstrumentationTestRun(
         @trace_event.traced
         def incremental_install_helper_internal(d, apk_path=None):
           # pylint: disable=unused-argument
+          logging.info('Start Incremental Installing %s', apk.path)
           installer.Install(d, json_path, apk=apk, permissions=permissions)
+          logging.info('Finished Incremental Installing %s', apk.path)
+
         return incremental_install_helper_internal
 
       permissions = self._test_instance.test_apk.GetPermissions()