Reword test in test_suite_x509write

Signed-off-by: Agathiyan Bragadeesh <agathiyan.bragadeesh2@arm.com>
diff --git a/tests/suites/test_suite_x509write.data b/tests/suites/test_suite_x509write.data
index 98017d6..490df80 100644
--- a/tests/suites/test_suite_x509write.data
+++ b/tests/suites/test_suite_x509write.data
@@ -214,7 +214,7 @@
 X509 String to Names #16 (Accept numercoid/hexstring)
 mbedtls_x509_string_to_names:"C=NL, 2.5.4.10=#0C084F6666737061726B, OU=PolarSSL":"C=NL, O=Offspark, OU=PolarSSL":0
 
-X509 String to Names #17 (Accept numercoid/hexstring, output as bitstring)
+X509 String to Names #17 (Output attributetype as bitstring)
 mbedtls_x509_string_to_names:"C=NL, 2.5.4.10=#03084F6666737061726B, OU=PolarSSL":"C=NL, O=#03084F6666737061726B, OU=PolarSSL":0
 
 Check max serial length