powercp: mpc8xx: move commproc.h

include/commproc.h is dedicated to the 8xx, rename it cpm_8xx.h and
move it into arch/powerpc/include/asm

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
diff --git a/arch/powerpc/cpu/mpc8xx/interrupts.c b/arch/powerpc/cpu/mpc8xx/interrupts.c
index 846148a..20f9664 100644
--- a/arch/powerpc/cpu/mpc8xx/interrupts.c
+++ b/arch/powerpc/cpu/mpc8xx/interrupts.c
@@ -8,9 +8,9 @@
 #include <common.h>
 #include <mpc8xx.h>
 #include <mpc8xx_irq.h>
+#include <asm/cpm_8xx.h>
 #include <asm/processor.h>
 #include <asm/io.h>
-#include <commproc.h>
 
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