Upgrade android-pie-arm64-rel trybot to same machines as marshmallow trybot.

Bug: 1021665
Change-Id: Ic2b72062f36eb219d10ae67f5c96c650fbd95c2e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1918342Reviewed-by: Aaron Gable <agable@chromium.org>
Commit-Queue: Andrew Luo <aluo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#717720}

infra/config/buckets/try.star

@@ -183,6 +183,9 @@ android_builder(
 
 android_builder(
     name = 'android-pie-arm64-rel',
+    cores = 16,
+    goma_jobs = goma.jobs.J300,
+    ssd = True,
     tryjob = tryjob(
         experiment_percentage = 50,
     ),

infra/config/generated/cr-buildbucket.cfg

@@ -10512,15 +10512,15 @@ buckets: <
       swarming_host: "chromium-swarm.appspot.com"
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "builderless:1"
-      dimensions: "cores:8"
+      dimensions: "cores:16"
       dimensions: "cpu:x86-64"
       dimensions: "os:Ubuntu-16.04"
-      dimensions: "ssd:0"
+      dimensions: "ssd:1"
       recipe: <
         name: "chromium_trybot"
         cipd_package: "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build"
         cipd_version: "refs/heads/master"
-        properties_j: "$build/goma:{\"rpc_extra_params\":\"?prod\",\"server_host\":\"goma.chromium.org\"}"
+        properties_j: "$build/goma:{\"jobs\":300,\"rpc_extra_params\":\"?prod\",\"server_host\":\"goma.chromium.org\"}"
         properties_j: "$kitchen:{\"devshell\":true,\"git_auth\":true}"
         properties_j: "mastername:\"tryserver.chromium.android\""
       >