Run chrome_public_test_apk with playstore image on android-11-x86-fyi-rel

Grant the permission MANAGE_EXTERNAL_STORAGE otherwise the tests will
fail with errors like
"Could not create/sdcard/render_test_output_dir/skia_gold".
For example ci.chromium.org/b/8844247068214862400

Bug: 1137474
Change-Id: I9ee735f5ddfea9d9838f267e7dad736c67060598
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2787230
Reviewed-by: Andrew Grieve <[email protected]>
Commit-Queue: Haiyang Pan <[email protected]>
Cr-Commit-Position: refs/heads/master@{#893674}
diff --git a/testing/buildbot/test_suite_exceptions.pyl b/testing/buildbot/test_suite_exceptions.pyl
index 6f9a842e..eca0fc8 100644
--- a/testing/buildbot/test_suite_exceptions.pyl
+++ b/testing/buildbot/test_suite_exceptions.pyl
@@ -874,6 +874,7 @@
       },
       'android-11-x86-fyi-rel': {
         'args': [
+          '--avd-config=../../tools/android/avd/proto/generic_playstore_android30.textpb',
           '--test-launcher-filter-file=../../testing/buildbot/filters/android.emulator_11.chrome_public_test_apk.filter',
           '--timeout-scale=2.0',
         ],
@@ -881,6 +882,21 @@
         # are fixed.
         'swarming': {
           'shards': 30,
+          'named_caches': [
+            {
+              'name': 'avd_generic_playstore_android30',
+              'path': '.android',
+            },
+            {
+              'name': 'system_images_android_30_google_apis_playstore_x86',
+              'path': '.emulator_sdk',
+            },
+          ],
+          'dimension_sets': [
+            {
+              'machine_type': 'e2-standard-8', # use 8-core to shorten runtime
+            },
+          ],
         },
       },
       'android-arm64-proguard-rel': {