Switch linux-lacros-rel to n1-standard-16

The goal is to speed-up the compilation and linkinng on linux-lacros-rel
to as to offset the extra overhead of enabling 'also_build_ash_chrome'
gn arg.

Bug: 1129223
Change-Id: I7313fc22cc0115a33c8b4c0325655dae26a1c249
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2477611Reviewed-by: Erik Staab <estaab@chromium.org>
Commit-Queue: Yuke Liao <liaoyuke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#817996}

infra/config/generated/cr-buildbucket.cfg

@@ -25291,11 +25291,11 @@ 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: "pool:luci.chromium.try"
-      dimensions: "ssd:0"
+      dimensions: "ssd:1"
       exe {
         cipd_package: "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build"
         cipd_version: "refs/heads/master"

infra/config/subprojects/chromium/try.star

@@ -678,6 +678,8 @@ try_.chromium_chromiumos_builder(
 
 try_.chromium_chromiumos_builder(
     name = "linux-lacros-rel",
+    cores = 16,
+    ssd = True,
     goma_jobs = goma.jobs.J150,
     main_list_view = "try",
     tryjob = try_.job(),