usb: gadget: rzv2m_usb3drd: drop of_match_ptr for ID table

usb: gadget: rzv2m_usb3drd: drop of_match_ptr for ID table

The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it might not be relevant here).

  drivers/usb/gadget/udc/rzv2m_usb3drd.c:120:34: error: ‘rzv2m_usb3drd_of_match’ defined but not used [-Werror=unused-const-variable=]

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230311173624.263189-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>