bus: mhi: host: pci_generic: Add Telit FE912C04 modem support

Add SDX35 based modem Telit FE912C04, reusing FN920C04 configuration.

01:00.0 Unassigned class [ff00]: Qualcomm Device 011a
        Subsystem: Device 1c5d:2045

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Link: https://patch.msgid.link/20260323122837.3406521-1-dnlplm@gmail.com