Increase number of shards for Android-ASan bot

While rolling the NDK to 23, the Android-ASan frequently timed out.
Raising the number of shards allocated for this bot from 18 to 25 to
mitigate this problem.

Bug: 1246049, 1271065
Cq-Include-Trybots: luci.chromium.try:android-asan
Change-Id: I52c1d9114b196c8de3124cc5859ac765a338894f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3423759
Reviewed-by: Haiyang Pan <[email protected]>
Commit-Queue: Jonathan Wright <[email protected]>
Cr-Commit-Position: refs/heads/main@{#966673}
diff --git a/testing/buildbot/test_suite_exceptions.pyl b/testing/buildbot/test_suite_exceptions.pyl
index bfa3fb8..7b58f71 100644
--- a/testing/buildbot/test_suite_exceptions.pyl
+++ b/testing/buildbot/test_suite_exceptions.pyl
@@ -1126,6 +1126,11 @@
           'shards': 2,
         },
       },
+      'android-asan': {
+        'swarming': {
+          'shards': 3,
+        },
+      },
       'android-marshmallow-arm64-rel': {
         'swarming': {
           'quickrun_shards': 2,
@@ -1324,7 +1329,7 @@
           '--test-launcher-filter-file=../../testing/buildbot/filters/android.asan.content_browsertests.filter',
         ],
         'swarming': {
-          'shards': 18,
+          'shards': 25,
         },
       },
       'android-marshmallow-arm64-rel': {