bus: mhi: host: pci_generic: Add support for Quectel RM520N-GL Lenovo variant

Quectel's RM520N-GL Lenovo variant is same as that of the existing
RM520N-GL modem and uses the same config. But this one is designed for
Lenovo laptop usecase, hence Quectel got a new PID.

Signed-off-by: Duke Xin(辛安文) <duke_xinanwen@163.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Link: https://lore.kernel.org/r/20230807030454.37255-1-duke_xinanwen@163.com


[mani: tweaked subject and commit message a bit]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>