PCI: Use predefined Pericom Vendor ID

Pericom has predefined Vendor ID, use it instead of hard-coded value.

Link: https://lore.kernel.org/r/20201106100526.17726-2-andriy.shevchenko@linux.intel.com


Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>