Bug 1553116 - Get the arm64 hardening flag out of the way of l10n builds r=froydnj

Differential Revision: https://phabricator.services.mozilla.com/D32165

--HG--
extra : moz-landing-system : lando

browser/config/mozconfigs/win64-aarch64/common-opt

@@ -22,3 +22,9 @@ export MOZ_PACKAGE_JSSHELL=1
 if test -n "$MOZ_ARTIFACT_TASK_WIN32_OPT"; then
   ac_add_options --enable-eme=widevine
 fi
+
+# Temporary signal to toolchain.configure that our compiler is patched to
+# support CFG, until such support can be assumed.
+if test -z "$USE_ARTIFACT"; then
+  ac_add_options --enable-hardening
+fi

browser/config/mozconfigs/win64-aarch64/common-win64

@@ -1,9 +1,3 @@
 # This file is used by all AArch64 Win64 builds
 
 ac_add_options --target=aarch64-windows-mingw32
-
-# Temporary signal to toolchain.configure that our compiler is patched to
-# support CFG, until such support can be assumed.
-if test -z "$USE_ARTIFACT"; then
-  ac_add_options --enable-hardening
-fi