Rename CPUState -> CPUArchState

Scripted conversion:
  for file in *.[hc] hw/*.[hc] hw/kvm/*.[hc] linux-user/*.[hc] linux-user/m68k/*.[hc] bsd-user/*.[hc] darwin-user/*.[hc] tcg/*/*.[hc] target-*/cpu.h; do
    sed -i "s/CPUState/CPUArchState/g" $file
  done

All occurrences of CPUArchState are expected to be replaced by QOM CPUState,
once all targets are QOM'ified and common fields have been extracted.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/target-alpha/cpu.h b/target-alpha/cpu.h
index ecc2a35..48c0fdc 100644
--- a/target-alpha/cpu.h
+++ b/target-alpha/cpu.h
@@ -25,7 +25,7 @@
 
 #define TARGET_LONG_BITS 64
 
-#define CPUState struct CPUAlphaState
+#define CPUArchState struct CPUAlphaState
 
 #include "cpu-defs.h"