bus: mhi: host: pci_generic: Enable EDL trigger for Foxconn modems

All Foxconn modems support generic EDL trigger to flash the firmware.
Hence, enable the EDL trigger using mhi_pci_dev_info::edl_trigger.

Signed-off-by: Slark Xiao <slark_xiao@163.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20240725022941.65948-2-slark_xiao@163.com


[mani: Reworded the subject and description]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>