Update Mac goldctl

Updates DEPS and the Chromium roller script to have both an x64
and arm64 version of goldctl on Mac. Also updates the goldctl
build group to include both binaries.

Bug: chromium:1280002
Change-Id: I82c9c93eb865fb68ad242454415606c9ef2846fd
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3373623
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
diff --git a/DEPS b/DEPS
index 18bc434..1748728 100644
--- a/DEPS
+++ b/DEPS
@@ -618,11 +618,22 @@
       'condition': 'checkout_win and not build_with_chromium',
   },
 
-  'tools/skia_goldctl/mac': {
+  'tools/skia_goldctl/mac_amd64': {
       'packages': [
         {
           'package': 'skia/tools/goldctl/mac-amd64',
-          'version': 'zLP4FDegN-yg3uvzWUdf4zNRVHDwHd0VLm86FkZCP_MC',
+          'version': 'x0lVRcTpz47HUZXm2WnVv16tuAKSZ-QUF9A1T1j2RykC',
+        },
+      ],
+      'dep_type': 'cipd',
+      'condition': 'checkout_mac and not build_with_chromium',
+  },
+
+  'tools/skia_goldctl/mac_arm64': {
+      'packages': [
+        {
+          'package': 'skia/tools/goldctl/mac-arm64',
+          'version': 'Cbv4TR0stWg2pA84PBfgi-N9jV07KWhEcAsg8ZX8ZkYC',
         },
       ],
       'dep_type': 'cipd',