smc91x: SMC_IO_SHIFT platform data support for default case

Commit 15919886 added SMC_IO_SHIFT
platform data support. After that ARM board support was added.

The default case is still missing though, so on SuperH SMC_IO_SHIFT
is constantly zero regardless of what you pass as platform data.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Test-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/net/smc91x.h

@@ -446,6 +446,8 @@ static inline void LPD7_SMC_outsw (unsigned char* a, int r,
 #define SMC_CAN_USE_32BIT	1
 #define SMC_NOWAIT		1
 
+#define SMC_IO_SHIFT		(lp->io_shift)
+
 #define SMC_inb(a, r)		readb((a) + (r))
 #define SMC_inw(a, r)		readw((a) + (r))
 #define SMC_inl(a, r)		readl((a) + (r))