vli: Fix regression in enumerating the PD device
vli: Fix regression in enumerating the PD device

This was missed when porting the MSP430 and RTD21XX chips.

hughsie/fwupd,fwupd/fwupd,fwupd/fwupd,hughsie/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd,fwupd/fwupd