Move zeroize-as-memset into a config file under tests/

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index dad8464..55cd663 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -5123,7 +5123,7 @@
     scripts/config.py full
 
     # Only compile - we're looking for sizeof-pointer-memaccess warnings
-    make CC=gcc CFLAGS='-Werror -DMBEDTLS_PLATFORM_ZEROIZE_CHECK_UNSAFE -Wsizeof-pointer-memaccess'
+    make CC=gcc CFLAGS="'-DMBEDTLS_USER_CONFIG_FILE=\"../tests/configs/config-wrapper-zeroize-memset.h\"' -DMBEDTLS_TEST_DEFINES_ZEROIZE -Werror -Wsizeof-pointer-memaccess"
 }