asm-generic/hyperv: add HV_STATUS_ACCESS_DENIED definition

From TLFSv6.0b, this status means: "The caller did not possess sufficient
access rights to perform the requested operation."

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210521095204.2161214-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>