run ninja with higher -j for bots blocking clang rolls

These bots often time out during clobber builds, blocking clang rolls.
Bump the -j number to those used by similar bots.

Bug: 903259
Change-Id: I4ea85b111faf9bf0a441c18730a6a8d0bee20d23
Reviewed-on: https://chromium-review.googlesource.com/c/1326153
Commit-Queue: Hans Wennborg <hans@chromium.org>
Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606437}

infra/config/global/cr-buildbucket.cfg

@@ -3054,7 +3054,11 @@ buckets {
     builders { mixins: "linux-try" name: "linux_chromium_dbg_32_ng" }
     builders { mixins: "linux-try" name: "linux_chromium_dbg_ng" }
     builders { mixins: "linux-try" name: "linux_chromium_headless_rel" }
-    builders { mixins: "linux-try" name: "linux_chromium_msan_rel_ng" }
+    builders {
+      mixins: "linux-try"
+      mixins: "goma-j150"
+      name: "linux_chromium_msan_rel_ng"
+    }
     builders {
       mixins: "linux-try"
       mixins: "goma-j150"
@@ -3107,7 +3111,11 @@ buckets {
     builders { mixins: "mac-try" name: "mac_chromium_10.12_rel_ng" }
     builders { mixins: "mac-try" name: "mac_chromium_10.13_rel_ng"}
     builders { mixins: "mac-try" name: "mac_chromium_archive_rel_ng" }
-    builders { mixins: "mac-try" name: "mac_chromium_asan_rel_ng" }
+    builders {
+      mixins: "mac-try"
+      mixins: "goma-j150"
+      name: "mac_chromium_asan_rel_ng"
+    }
     builders {
       mixins: "mac-try"
       mixins: "goma-j150"
@@ -3149,7 +3157,11 @@ buckets {
     }
     builders { mixins: "win-try" name: "win7_chromium_rel_loc_exp" }
     builders { mixins: "win-try" name: "win-annotator-rel" }
-    builders { mixins: "win-try" name: "win-asan" }
+    builders {
+      mixins: "win-try"
+      mixins: "goma-j150"
+      name: "win-asan"
+    }
     builders { mixins: "win-try" name: "win-jumbo-rel" }
     builders {
       name: "win-libfuzzer-asan-rel"