pxa/magician: remove deprecated .bus_shift from PASIC3 platform_data

The PASIC3 driver now calculates its register spacing from the resource
size.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

arch/arm/mach-pxa/magician.c

@@ -507,7 +507,6 @@ static struct resource pasic3_resources[] = {
 };
 
 static struct pasic3_platform_data pasic3_platform_data = {
-	.bus_shift  = 2,
 	.led_pdata  = &pasic3_leds_info,
 	.clock_rate = 4000000,
 };