Deprecate mbedtls_pkcs5_pbkdf2_hmac

Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/library/pkcs5.c b/library/pkcs5.c
index 1d43a3a..1fc84a4 100644
--- a/library/pkcs5.c
+++ b/library/pkcs5.c
@@ -208,6 +208,9 @@
 }
 #endif /* MBEDTLS_ASN1_PARSE_C */
 
+#if defined(MBEDTLS_DEPRECATED_REMOVED)
+static
+#endif
 int mbedtls_pkcs5_pbkdf2_hmac( mbedtls_md_context_t *ctx,
                        const unsigned char *password,
                        size_t plen, const unsigned char *salt, size_t slen,