[MYRI_SBUS]: Prevent that myri_do_handshake lies about ticks.

With '<=' tick can be incremented up to 26, The last loop is redundant
since even when 'softstate' becomes 'STATE_READY', 'if (tick > 25)'
will still cause the function to return -1,
Signed-off-by: NRoel Kluin <12o3l@tiscali.nl>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/myri_sbus.c

@@ -134,7 +134,7 @@ static int myri_do_handshake(struct myri_eth *mp)
 
 	myri_disable_irq(mp->lregs, cregs);
 
-	while (tick++ <= 25) {
+	while (tick++ < 25) {
 		u32 softstate;
 
 		/* Wake it up. */