[POWERPC] XilinxFB: Move xilinxfb_platform_data definition to a shared header file

XilnixFB can be used by more than just arch/ppc.  Move the data structure
definition into include/linux/xilinxfb.h so it can be used by microblaze
and arch/powerpc

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
diff --git a/arch/ppc/syslib/virtex_devices.h b/arch/ppc/syslib/virtex_devices.h
index 9f38d92..6ebd9b4 100644
--- a/arch/ppc/syslib/virtex_devices.h
+++ b/arch/ppc/syslib/virtex_devices.h
@@ -12,13 +12,7 @@
 #define __ASM_VIRTEX_DEVICES_H__
 
 #include <linux/platform_device.h>
-
-/* ML300/403 reference design framebuffer driver platform data struct */
-struct xilinxfb_platform_data {
-	u32 rotate_screen;
-	u32 screen_height_mm;
-	u32 screen_width_mm;
-};
+#include <linux/xilinxfb.h>
 
 void __init virtex_early_serial_map(void);