Reland "luci: Increase CQ experimental percentage to 80 from 60 for pie-arm64-rel"

This is a reland of f6120650
The original CL was reverted yesterday, to release the resource for the higher
build request.
Today the build request seems fine so reland this CL

Original change's description:
> luci: Increase CQ experimental percentage to 80 from 60 for pie-arm64-rel
>
> After the test suites adjustment in crrev.com/c/2427028, the device
> usage looks in a good shape and should be able to hold more traffc:
> http://shortn/_E2uBVeObl6
>
> Bug: 1111436
> Change-Id: I9bfb44a96feb2bc2d49ec8335afc73324711db5c
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2429931
> Reviewed-by: Ben Pastene <bpastene@chromium.org>
> Commit-Queue: Haiyang Pan <hypan@google.com>
> Cr-Commit-Position: refs/heads/master@{#811298}

Bug: 1111436
Change-Id: Iebdc89855816f214f317c0f646a301d87987bd1b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2444190
Commit-Queue: Haiyang Pan <hypan@google.com>
Reviewed-by: Ben Pastene <bpastene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812989}

infra/config/generated/commit-queue.cfg

@@ -285,7 +285,7 @@ config_groups {
       }
       builders {
         name: "chromium/try/android-pie-arm64-rel"
-        experiment_percentage: 60
+        experiment_percentage: 80
         location_regexp: ".*"
         location_regexp_exclude: ".+/[+]/docs/.+"
         location_regexp_exclude: ".+/[+]/infra/config/.+"

infra/config/generated/cq-builders.md

@@ -351,7 +351,7 @@ as required builders.
   * Experiment percentage: 40
 
 * [android-pie-arm64-rel](https://ci.chromium.org/p/chromium/builders/try/android-pie-arm64-rel) ([definition](https://cs.chromium.org/search?q=package:%5Echromium$+file:/cq.star$+-file:/beta/+-file:/stable/+android-pie-arm64-rel)) ([matching builders](https://cs.chromium.org/search?q=+file:trybots.py+android-pie-arm64-rel))
-  * Experiment percentage: 60
+  * Experiment percentage: 80
 
 * [fuchsia-compile-x64-dbg](https://ci.chromium.org/p/chromium/builders/try/fuchsia-compile-x64-dbg) ([definition](https://cs.chromium.org/search?q=package:%5Echromium$+file:/cq.star$+-file:/beta/+-file:/stable/+fuchsia-compile-x64-dbg)) ([matching builders](https://cs.chromium.org/search?q=+file:trybots.py+fuchsia-compile-x64-dbg))
   * Experiment percentage: 50

infra/config/subprojects/chromium/try.star

@@ -324,7 +324,7 @@ try_.chromium_android_builder(
     # TODO(crbug.com/1111436): Enable on CQ fully once the tests run fine.
     main_list_view = settings.main_list_view_name,
     tryjob = try_.job(
-        experiment_percentage = 60,
+        experiment_percentage = 80,
     ),
 )