kvm: x86: handle XSAVES vmcs and vmexit

Initialize the XSS exit bitmap.  It is zero so there should be no XSAVES
or XRSTORS exits.

Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --cc arch/x86/include/asm/vmx.h
Simple merge

diff --cc arch/x86/include/uapi/asm/vmx.h
Simple merge

diff --cc arch/x86/kvm/vmx.c
Simple merge