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/xen-all.c b/xen-all.c
index 6cef506..493112b 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -530,14 +530,14 @@
 
 static void xen_reset_vcpu(void *opaque)
 {
-    CPUState *env = opaque;
+    CPUArchState *env = opaque;
 
     env->halted = 1;
 }
 
 void xen_vcpu_init(void)
 {
-    CPUState *first_cpu;
+    CPUArchState *first_cpu;
 
     if ((first_cpu = qemu_get_cpu(0))) {
         qemu_register_reset(xen_reset_vcpu, first_cpu);