Separate SHA224 from SHA256 config options.

These options are still dependant on each other.
This is an intermediate step.

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>

tests/scripts/depends-hashes.pl

@@ -59,7 +59,7 @@ my @hash_configs = (
     ['unset MBEDTLS_MD5_C'],
     ['unset MBEDTLS_SHA512_C', 'unset MBEDTLS_SHA384_C '],
     ['unset MBEDTLS_SHA384_C'],
-    ['unset MBEDTLS_SHA256_C'],
+    ['unset MBEDTLS_SHA256_C', 'unset MBEDTLS_SHA224_C'],
     ['unset MBEDTLS_SHA1_C'],
 );