display: Enable clang for all display modules

[haggertk: Picked to 8974. Some of the upstream changes were already
 accounted for by Steve in 10d21e6d2776ab8ad153d478fac46616abc494e1]

Change-Id: I71e3fa3f7d44253b8e01d1eafe086b1898d65a8e
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>
diff --git a/libqdutils/Android.mk b/libqdutils/Android.mk
index 1c9352b..8af13e8 100644
--- a/libqdutils/Android.mk
+++ b/libqdutils/Android.mk
@@ -7,7 +7,8 @@
 LOCAL_MODULE_TAGS             := optional
 LOCAL_SHARED_LIBRARIES        := $(common_libs) libui libbinder libqservice
 LOCAL_C_INCLUDES              := $(common_includes) $(kernel_includes)
-LOCAL_CFLAGS                  := $(common_flags) -DLOG_TAG=\"qdutils\"
+LOCAL_CFLAGS                  := $(common_flags) -DLOG_TAG=\"qdutils\" -Wno-sign-conversion
+LOCAL_CLANG                   := true
 LOCAL_ADDITIONAL_DEPENDENCIES := $(common_deps)
 LOCAL_COPY_HEADERS_TO         := $(common_header_export_path)
 LOCAL_COPY_HEADERS            := display_config.h mdp_version.h
@@ -26,8 +27,9 @@
 LOCAL_C_INCLUDES                := $(common_includes)
 LOCAL_ADDITIONAL_DEPENDENCIES   := $(common_deps)
 LOCAL_SRC_FILES                 := qdMetaData.cpp
-LOCAL_CFLAGS                    := $(common_flags)
+LOCAL_CFLAGS                    := $(common_flags) -Wno-sign-conversion
 LOCAL_CFLAGS                    += -DLOG_TAG=\"DisplayMetaData\"
+LOCAL_CLANG                     := true
 LOCAL_MODULE_TAGS               := optional
 LOCAL_MODULE                    := libqdMetaData
 LOCAL_VENDOR_MODULE             := true