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

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/board/siemens/IAD210/u-boot.lds b/board/siemens/IAD210/u-boot.lds
index 877cf9a..904d45f 100644
--- a/board/siemens/IAD210/u-boot.lds
+++ b/board/siemens/IAD210/u-boot.lds
@@ -55,10 +55,10 @@
     /* WARNING - the following is hand-optimized to fit within	*/
     /* the sector layout of our flash chips!	XXX FIXME XXX	*/
 
-    cpu/mpc8xx/start.o	(.text)
+    arch/ppc/cpu/mpc8xx/start.o	(.text)
     common/dlmalloc.o	(.text)
     arch/ppc/lib/ppcstring.o	(.text)
-    cpu/mpc8xx/interrupts.o (.text)
+    arch/ppc/cpu/mpc8xx/interrupts.o (.text)
     arch/ppc/lib/time.o		(.text)
     . = env_offset;
     common/env_embedded.o(.text)