Add dwc2_pci kernel module into own kernel package.
The dwc2_pci.ko kernel module was always build when kmod-usb-dwc2
was selected, but it was not packaged.
Add the missing kmod-usb-phy-nop dependency to the kmod-usb-dwc2-pci
package too. The CONFIG_USB_DWC2_PLATFORM option is already gone for
some time.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>