watchdog: sp5100_tco: support Hygon FCH/SCH (Server Controller Hub)

Add PCI_VENDOR_ID_HYGON(Hygon vendor id [0x1d94]) in this driver

Signed-off-by: Yuechao Zhao <yuechao.zhao@advantech.com.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lkml.kernel.org/r/20230612031907.796461-1-a345351830@gmail.com


Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>