hal: Compilation fix for SDLLVM toolchain 16.0

Change-Id: If0c76be6857a1792ef72d077b4f8053ff1f7734d
diff --git a/hal/Android.mk b/hal/Android.mk
index 4651e19..370e962 100644
--- a/hal/Android.mk
+++ b/hal/Android.mk
@@ -381,7 +381,7 @@
 endif
 
 LOCAL_CFLAGS += -D_GNU_SOURCE
-LOCAL_CFLAGS += -Wall -Werror
+LOCAL_CFLAGS += -Wall -Werror -Wno-enum-conversion
 
 LOCAL_COPY_HEADERS_TO   := mm-audio
 LOCAL_COPY_HEADERS      := audio_extn/audio_defs.h