[ARM] Move include/asm-arm/plat-orion to arch/arm/plat-orion/include/plat

This patch performs the equivalent include directory shuffle for
plat-orion, and fixes up all users.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index 6400248..917cf8d 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -19,7 +19,7 @@
 #include <asm/io.h>
 #include <asm/sizes.h>
 #include <mach/hardware.h>
-#include <asm/plat-orion/orion_nand.h>
+#include <plat/orion_nand.h>
 
 #ifdef CONFIG_MTD_CMDLINE_PARTS
 static const char *part_probes[] = { "cmdlinepart", NULL };