Add dependency of mbedtls_asn1_write_len() test on ASN.1 parsing
diff --git a/tests/suites/test_suite_asn1write.function b/tests/suites/test_suite_asn1write.function
index fc5fd8a..2ff9398 100644
--- a/tests/suites/test_suite_asn1write.function
+++ b/tests/suites/test_suite_asn1write.function
@@ -83,7 +83,7 @@
 }
 /* END_CASE */
 
-/* BEGIN_CASE */
+/* BEGIN_CASE depends_on:MBEDTLS_ASN1PARSE_C */
 void mbedtls_asn1_write_len( int len, char *check_str, int buf_len,
                              int result )
 {