rrunner.c:rr_init() must be __devinit

This patch fixes the following section mismatch:

<--  snip  -->

...
  MODPOST vmlinux
WARNING: drivers/built-in.o(.text+0x26e3f2): Section mismatch: reference to .init.text:rr_init (between 'rr_init_one' and 'rr_remove_one')
...

<--  snip  -->
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/net/rrunner.c

@@ -516,7 +516,7 @@ static unsigned int write_eeprom(struct rr_private *rrpriv,
 }
 
 
-static int __init rr_init(struct net_device *dev)
+static int __devinit rr_init(struct net_device *dev)
 {
 	struct rr_private *rrpriv;
 	struct rr_regs __iomem *regs;