drivers/net: Adjust confusing if indentation

Outdent the code following the if.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r disable braces4@
position p1,p2;
statement S1,S2;
@@

(
if (...) { ... }
|
if (...) S1@p1 S2@p2
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

if (p1[0].column == p2[0].column):
  cocci.print_main("branch",p1)
  cocci.print_secs("after",p2)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/gianfar.c

@@ -1859,7 +1859,7 @@ static int register_grp_irqs(struct gfar_priv_grp *grp)
 				printk(KERN_ERR "%s: Can't get IRQ %d\n",
 					dev->name, grp->interruptError);
 
-				goto err_irq_fail;
+			goto err_irq_fail;
 		}
 
 		if ((err = request_irq(grp->interruptTransmit, gfar_transmit,