Fix references to resources for Spa

Bug: 293810334
Test: m Settings
Change-Id: Id9e7ad5bb4dc2731545c35696ecaa842d4281323
diff --git a/packages/SettingsLib/Spa/testutils/Android.bp b/packages/SettingsLib/Spa/testutils/Android.bp
index e4d56cc..65f5d34 100644
--- a/packages/SettingsLib/Spa/testutils/Android.bp
+++ b/packages/SettingsLib/Spa/testutils/Android.bp
@@ -22,7 +22,7 @@
     name: "SpaLibTestUtils",
 
     srcs: ["src/**/*.kt"],
-
+    use_resource_processor: true,
     static_libs: [
         "SpaLib",
         "androidx.arch.core_core-testing",