prop224: Add new cert type for hidden service

Signed-off-by: David Goulet <dgoulet@torproject.org>
Signed-off-by: George Kadianakis <desnacked@riseup.net>

src/or/torcert.h

@@ -12,6 +12,7 @@
 #define CERT_TYPE_SIGNING_LINK  0x05
 #define CERT_TYPE_SIGNING_AUTH  0x06
 #define CERT_TYPE_ONION_ID      0x0A
+#define CERT_TYPE_HS_IP_ENC     0x0B
 
 #define CERT_FLAG_INCLUDE_SIGNING_KEY 0x1