8286601: Mac Aarch: Excessive warnings to be ignored for build jdk

Reviewed-by: erikj

Author: Adam Farley

make/autoconf/flags-cflags.m4

@@ -180,6 +180,7 @@ AC_DEFUN([FLAGS_SETUP_WARNINGS],
 
     clang)
       DISABLE_WARNING_PREFIX="-Wno-"
+      BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-"
       CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
 
       # Additional warnings that are not activated by -Wall and -Wextra