Rename CPUState to CPUOldState.

Upstream qemu has split the cpu state into two new data structures:

  CPUState -> is used to model the CPU state through the QEMU
              object model.

  CPUArchState -> actually a macro that aliases CPUArmState,
                  CPUX86State or CPUMIPSState.

Both were part of the "CPUState" in the current emulator sources.

Previous patches introduced CPUArchState, as a simple alias to the
machine-specific state. This patch renames any use of CPUState in
the current code to CPUOldState, except within target-*/ directories
where it is replaced by CPU${ARCH}State instead.

This will allow bringing the upstream CPUState definition in the
source tree, and slowly migrate everything to the right location.

Change-Id: I88b79e6e89f1f36084dc2642e1cf415135e4da09
diff --git a/hw/android/android_mips.c b/hw/android/android_mips.c
index c55ef76..98a082f 100644
--- a/hw/android/android_mips.c
+++ b/hw/android/android_mips.c
@@ -71,7 +71,7 @@
 
 #define PHYS_TO_VIRT(x) ((x) | ~(target_ulong)0x7fffffff)
 
-static void android_load_kernel(CPUState *env, int ram_size, const char *kernel_filename,
+static void android_load_kernel(CPUOldState *env, int ram_size, const char *kernel_filename,
               const char *kernel_cmdline, const char *initrd_filename)
 {
     int initrd_size;
@@ -156,7 +156,7 @@
     const char *initrd_filename,
     const char *cpu_model)
 {
-    CPUState *env;
+    CPUOldState *env;
     qemu_irq *goldfish_pic;
     int i;
     ram_addr_t ram_offset;