pcmcia: fix cisinfo_t removal

The cisinfo_t removal patch (c5081d5f47
pcmcia: simplify pccard_validate_cis ) introduced a bug that prevented
card detection, for the (info->Chains == MAX_TUPLES) check was replaced
by (count), which is always true. Restoring the comparison to MAX_TUPLES
makes everybody happy...

[linux@dominikbrodowski.net: update changelog comment]
Signed-off-by: Marc Zyngier <marc.zyngier@altran.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

drivers/pcmcia/cistpl.c

@@ -1490,7 +1490,7 @@ int pccard_validate_cis(struct pcmcia_socket *s, unsigned int function, unsigned
 	    ((tuple->TupleCode > 0x90) && (tuple->TupleCode < 0xff)))
 	    reserved++;
     }
-    if ((count) || (reserved > 5) ||
+    if ((count == MAX_TUPLES) || (reserved > 5) ||
 	((!dev_ok || !ident_ok) && (count > 10)))
 	count = 0;