Restore util tests to crashpad_tests used by Chromium

This was indvertently removed in ea4af71c2ac7, which should have enabled
util tests on iOS, the only platform they had been disabled on.

Change-Id: Iec9656e322956849959a6e6fced7c97ace62014f
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2286509
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
GitOrigin-RevId: 7cf66d83e65e839c2b4f5a1b19a778ba3371575e
diff --git a/BUILD.gn b/BUILD.gn
index 3f0aa0a..1e44a85 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -40,6 +40,7 @@
       "minidump:minidump_test",
       "test:googlemock_main",
       "test:test_test",
+      "util:util_test",
     ]
     if (!crashpad_is_ios) {
       deps += [ "snapshot:snapshot_test" ]