ppc: Move cpu/$CPU to arch/ppc/cpu/$CPU

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/board/gen860t/u-boot-flashenv.lds b/board/gen860t/u-boot-flashenv.lds
index 7b83b25..0e12925 100644
--- a/board/gen860t/u-boot-flashenv.lds
+++ b/board/gen860t/u-boot-flashenv.lds
@@ -55,7 +55,7 @@
   .plt           : { *(.plt)		}
   .text :
   {
-    cpu/mpc8xx/start.o	(.text)
+    arch/ppc/cpu/mpc8xx/start.o	(.text)
     *(.text)
     *(.got1)
   }