x86/mce: Add Hygon Dhyana support to the MCA infrastructure

The machine check architecture for Hygon Dhyana CPU is similar to the
AMD family 17h one. Add vendor checking for Hygon Dhyana to share the
code path of AMD family 17h.

Signed-off-by: Pu Wen <puwen@hygon.cn>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: tglx@linutronix.de
Cc: mingo@redhat.com
Cc: hpa@zytor.com
Cc: tony.luck@intel.com
Cc: thomas.lendacky@amd.com
Cc: linux-edac@vger.kernel.org
Link: https://lkml.kernel.org/r/87d8a4f16bdea0bfe0c0cf2e4a8d2c2a99b1055c.1537533369.git.puwen@hygon.cn