staging: ft1000_proc needs asm/io.h for inw/outw on sparc

Seen during an allmodconfig build for sparc:

  CC [M]  drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.o
In file included from drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c:26:
drivers/staging/ft1000/ft1000-pcmcia/ft1000.h: In function 'ft1000_read_reg':
drivers/staging/ft1000/ft1000-pcmcia/ft1000.h:80: error: implicit declaration of function 'inw'
drivers/staging/ft1000/ft1000-pcmcia/ft1000.h: In function 'ft1000_write_reg':
drivers/staging/ft1000/ft1000-pcmcia/ft1000.h:86: error: implicit declaration of function 'outw'
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c

@@ -22,6 +22,7 @@
 #include <linux/string.h>
 #include <linux/vmalloc.h>
 #include <linux/netdevice.h>
+#include <asm/io.h>
 #include <asm/uaccess.h>
 #include "ft1000.h"