KVM: Portability: Split kvm_vcpu into arch dependent and independent parts (part 1)

First step to split kvm_vcpu.  Currently, we just use an macro to define
the common fields in kvm_vcpu for all archs, and all archs need to define
its own kvm_vcpu struct.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index e962de3..73e3580 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -26,6 +26,7 @@
 #define DPRINTF(_f, _a ...) printf(_f , ## _a)
 #else
 #include "kvm.h"
+#include "x86.h"
 #define DPRINTF(x...) do {} while (0)
 #endif
 #include "x86_emulate.h"