fix various issues

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 5180a16..2f4884c 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -2034,7 +2034,7 @@
             *md_alg = MBEDTLS_MD_SHA512;
             *pk_type = MBEDTLS_PK_RSA;
             break;
-#endif /* MBEDTLS_SHA384_C */
+#endif /* MBEDTLS_SHA512_C */
 
 #endif /* MBEDTLS_PKCS1_V15 && MBEDTLS_RSA_C */