Moved contents of clang_cflags into cflags

Test: Treehugger
Bug: 226636335
Change-Id: I1d45107994701d072728bc07ae1e5b8f50a73b89
diff --git a/libs/ui/tools/Android.bp b/libs/ui/tools/Android.bp
index c28c303..5d6070c 100644
--- a/libs/ui/tools/Android.bp
+++ b/libs/ui/tools/Android.bp
@@ -25,7 +25,7 @@
 
 cc_defaults {
     name: "libui_tools_default",
-    clang_cflags: [
+    cflags: [
         "-Wall",
         "-Wextra",
         "-Werror",