MINOR: update proxy-protocol-v2 #define

Report #define from doc/proxy-protocol.txt.
diff --git a/include/types/connection.h b/include/types/connection.h
index 1c923c5..eee75ec 100644
--- a/include/types/connection.h
+++ b/include/types/connection.h
@@ -373,10 +373,17 @@
 	} addr;
 };
 
-#define PP2_TYPE_SSL           0x20
-#define PP2_TYPE_SSL_VERSION   0x21
-#define PP2_TYPE_SSL_CN        0x22
-#define PP2_TYPE_NETNS         0x30
+#define PP2_TYPE_ALPN           0x01
+#define PP2_TYPE_AUTHORITY      0x02
+#define PP2_TYPE_CRC32C         0x03
+#define PP2_TYPE_NOOP           0x04
+#define PP2_TYPE_SSL            0x20
+#define PP2_SUBTYPE_SSL_VERSION 0x21
+#define PP2_SUBTYPE_SSL_CN      0x22
+#define PP2_SUBTYPE_SSL_CIPHER  0x23
+#define PP2_SUBTYPE_SSL_SIG_ALG 0x24
+#define PP2_SUBTYPE_SSL_KEY_ALG 0x25
+#define PP2_TYPE_NETNS          0x30
 
 #define TLV_HEADER_SIZE      3
 struct tlv {
diff --git a/src/connection.c b/src/connection.c
index 48f0ec3..a29bc2c 100644
--- a/src/connection.c
+++ b/src/connection.c
@@ -1037,7 +1037,7 @@
 			tlv->client |= PP2_CLIENT_SSL;
 			value = ssl_sock_get_version(remote);
 			if (value) {
-				ssl_tlv_len += make_tlv(&buf[ret+ssl_tlv_len], (buf_len-ret-ssl_tlv_len), PP2_TYPE_SSL_VERSION, strlen(value), value);
+				ssl_tlv_len += make_tlv(&buf[ret+ssl_tlv_len], (buf_len-ret-ssl_tlv_len), PP2_SUBTYPE_SSL_VERSION, strlen(value), value);
 			}
 			if (ssl_sock_get_cert_used_sess(remote)) {
 				tlv->client |= PP2_CLIENT_CERT_SESS;
@@ -1048,7 +1048,7 @@
 			if (srv->pp_opts & SRV_PP_V2_SSL_CN) {
 				cn_trash = get_trash_chunk();
 				if (ssl_sock_get_remote_common_name(remote, cn_trash) > 0) {
-					ssl_tlv_len += make_tlv(&buf[ret+ssl_tlv_len], (buf_len - ret - ssl_tlv_len), PP2_TYPE_SSL_CN, cn_trash->len, cn_trash->str);
+					ssl_tlv_len += make_tlv(&buf[ret+ssl_tlv_len], (buf_len - ret - ssl_tlv_len), PP2_SUBTYPE_SSL_CN, cn_trash->len, cn_trash->str);
 				}
 			}
 		}