Increase goma -j from 80 to 150 for 2 builders

This CL increases -j of win10_chromium_x64_rel_ng and linux-chromeos-rel builder,
focusing on slow compile builds like below.

win10_chromium_x64_rel_ng
5677s https://ci.chromium.org/b/8943086967459344576
4456s https://ci.chromium.org/b/8943127831308898304
4453s https://ci.chromium.org/b/8943098321824561792
4397s https://ci.chromium.org/b/8943061293045421456

linux-chromeos-rel
4966s https://ci.chromium.org/b/8943086967459344528
4742s https://ci.chromium.org/b/8943095152002623936
4273s https://ci.chromium.org/b/8943131794249185872
4182s https://ci.chromium.org/b/8943098321824561744

Bug: 804251
Change-Id: I4eca1267876e472daad8dbecb46a7bae734d1ad9
Reviewed-on: https://chromium-review.googlesource.com/1111487
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Reviewed-by: Fumitoshi Ukai <ukai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#569541}

infra/config/global/cr-buildbucket.cfg

@@ -2396,7 +2396,11 @@ buckets {
     builders { mixins: "chromeos-try" name: "chromeos-daisy-rel" }
     builders { mixins: "chromeos-try" name: "linux-chromeos-compile-dbg" }
     builders { mixins: "chromeos-try" name: "linux-chromeos-dbg" }
-    builders { mixins: "chromeos-try" name: "linux-chromeos-rel" }
+    builders {
+      mixins: "chromeos-try"
+      mixins: "goma-j150"
+      name: "linux-chromeos-rel"
+    }
 
     builders { mixins: "linux-angle-try" name: "linux_angle_compile_dbg_ng" }
     builders { mixins: "linux-angle-try" name: "linux_angle_dbg_ng" }
@@ -2598,7 +2602,11 @@ buckets {
       execution_timeout_secs: 10800  # 3h
     }
     builders { mixins: "win-try" name: "win10_chromium_x64_dbg_ng" }
-    builders { mixins: "win-try" name: "win10_chromium_x64_rel_ng" }
+    builders {
+      mixins: "win-try"
+      mixins: "goma-j150"
+      name: "win10_chromium_x64_rel_ng"
+    }
     builders { mixins: "win-try" name: "win10_chromium_x64_rel_ng_exp" }
     builders { mixins: "win-try" mixins: "gn_upload" name: "win8_chromium_gn_upload" }
     builders {