bus: mhi: host: pci_generic: constify modem_telit_fn980_hw_v1_config

MHI expects the controller configs to be const, and all of the other ones
in this file already are, so constify modem_telit_fn980_hw_v1_config.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20240222-mhi-const-bus-mhi-host-pci_generic-v1-1-d4c9b0b0a7a5@quicinc.com


Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>