[PATCH] isdn: fix gcc data type/size warning

Fix gcc warning:
drivers/isdn/i4l/isdn_ppp.c:1581: warning: large integer implicitly truncated to unsigned type
<seq> is unsigned int.
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/isdn/i4l/isdn_ppp.c

@@ -1577,7 +1577,7 @@ static int isdn_ppp_mp_init( isdn_net_local * lp, ippp_bundle * add_to )
 		lp->next = lp->last = lp;	/* nobody else in a queue */
 		lp->netdev->pb->frags = NULL;
 		lp->netdev->pb->frames = 0;
-		lp->netdev->pb->seq = LONG_MAX;
+		lp->netdev->pb->seq = UINT_MAX;
 	}
 	lp->netdev->pb->ref_ct++;