Adjust to added fields in cipher_base_t

This is a follow-up to the previous merge commit: two fields were added in the
merged development branch
diff --git a/library/cipher_wrap.c b/library/cipher_wrap.c
index 5ab4071..e22c172 100644
--- a/library/cipher_wrap.c
+++ b/library/cipher_wrap.c
@@ -1949,9 +1949,15 @@
 #if defined(MBEDTLS_CIPHER_MODE_CFB)
     NULL,
 #endif
+#if defined(MBEDTLS_CIPHER_MODE_OFB)
+    NULL,
+#endif
 #if defined(MBEDTLS_CIPHER_MODE_CTR)
     NULL,
 #endif
+#if defined(MBEDTLS_CIPHER_MODE_XTS)
+    NULL,
+#endif
 #if defined(MBEDTLS_CIPHER_MODE_STREAM)
     chacha20_stream_wrap,
 #endif
@@ -2015,9 +2021,15 @@
 #if defined(MBEDTLS_CIPHER_MODE_CFB)
     NULL,
 #endif
+#if defined(MBEDTLS_CIPHER_MODE_OFB)
+    NULL,
+#endif
 #if defined(MBEDTLS_CIPHER_MODE_CTR)
     NULL,
 #endif
+#if defined(MBEDTLS_CIPHER_MODE_XTS)
+    NULL,
+#endif
 #if defined(MBEDTLS_CIPHER_MODE_STREAM)
     NULL,
 #endif