zenfone9: Add BUILD_BROKEN_CLANG_PROPERTY flag

clang property is now deprecated

https://android.googlesource.com/platform/build/+/main/Changes.md#stop-using-clang-property

Use this flag to bypass this error.
Fix: clang: property is deprecated, see Changes.md file

Change-Id: I1869460d56c0d35b9b36aae12c0e5c3a1fa0d47f
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 1e86a78..417847e 100755
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -84,6 +84,7 @@
 AUDIO_FEATURE_ENABLED_VOICE_CONCURRENCY := true
 
 # Broken flags
+BUILD_BROKEN_CLANG_PROPERTY := true
 BUILD_BROKEN_DUP_RULES := true
 BUILD_BROKEN_ELF_PREBUILT_PRODUCT_COPY_FILES := true