net: sh_eth: fix the compile error

Fix the following build error:

CC drivers/net/sh_eth.o
drivers/net/sh_eth.c:1115: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘sh_eth_interrupt’
drivers/net/sh_eth.c: In function ‘sh_eth_open’:
drivers/net/sh_eth.c:1387: error: implicit declaration of function ‘request_irq’
drivers/net/sh_eth.c:1387: error: ‘sh_eth_interrupt’ undeclared (first use in this function)
drivers/net/sh_eth.c:1387: error: (Each undeclared identifier is reported only once
drivers/net/sh_eth.c:1387: error: for each function it appears in.)
drivers/net/sh_eth.c:1391: error: ‘IRQF_SHARED’ undeclared (first use in this function)
drivers/net/sh_eth.c:1424: error: implicit declaration of function ‘free_irq’
make[2]: *** [drivers/net/sh_eth.o] Error 1

Signed-off-by: Yoshihiro Shimoda <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/sh_eth.c

···
 #include <linux/phy.h>
 #include <linux/cache.h>
 #include <linux/io.h>
+#include <linux/interrupt.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 #include <linux/ethtool.h>