microblaze: Move cpu/microblaze/* to arch/microblaze/cpu/*

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/board/xilinx/microblaze-generic/u-boot.lds b/board/xilinx/microblaze-generic/u-boot.lds
index c20c6dd..ee41145 100644
--- a/board/xilinx/microblaze-generic/u-boot.lds
+++ b/board/xilinx/microblaze-generic/u-boot.lds
@@ -30,7 +30,7 @@
 	.text ALIGN(0x4):
 	{
 		__text_start = .;
-		cpu/microblaze/start.o (.text)
+		arch/microblaze/cpu/start.o (.text)
 		*(.text)
 		__text_end = .;
 	}