target-alpha: QOM'ify CPU

Embed CPUAlphaState as first member of AlphaCPU.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Richard Henderson <rth@twiddle.net>
diff --git a/target-alpha/cpu.h b/target-alpha/cpu.h
index fd578ce..99f9ee1 100644
--- a/target-alpha/cpu.h
+++ b/target-alpha/cpu.h
@@ -292,6 +292,7 @@
 #define cpu_signal_handler cpu_alpha_signal_handler
 
 #include "cpu-all.h"
+#include "cpu-qom.h"
 
 enum {
     FEATURE_ASN    = 0x00000001,