Fix regression in setkey whereby parser would fail to recognise tcp as

both a security protocol and an upper level protocol for encapsulation.

PR:		bin/63616
Submitted by:	ume@

sbin/setkey/parse.y

@@ -672,6 +672,7 @@ portstr
 upper_spec
 	:	DECSTRING { $$ = $1; }
 	|	ANY { $$ = IPSEC_ULPROTO_ANY; }
+	|	PR_TCP { $$ = IPPROTO_TCP; }
 	|	STRING
 		{
 			struct protoent *ent;

usr.sbin/setkey/parse.y

@@ -672,6 +672,7 @@ portstr
 upper_spec
 	:	DECSTRING { $$ = $1; }
 	|	ANY { $$ = IPSEC_ULPROTO_ANY; }
+	|	PR_TCP { $$ = IPPROTO_TCP; }
 	|	STRING
 		{
 			struct protoent *ent;