Add OV32C4 (OVTI32C4) sensor driver support

[oren]

Laptop: Lenovo Yoga Slim 7i 14 (S990, Lunar Lake)
Kernel: 6.18.13
Sensor ACPI ID: OVTI32C4
I2C device: i2c-OVTI32C4:00
ISP: Intel IPU7 (PCI 0000:00:05.0)

The OV32C4 sensor is detected on the I2C bus but has no V4L2 subdev driver.
dmesg reports "no subdev found in graph". libcamera cannot find the sensor.

The ipu7-drivers repo currently includes drivers for OV13B10, OV02C10,
OV05C10, and LT6911 but not OV32C4.

Could you add support for this sensor?

lsmod output:
ov13b10 (loaded but does not bind — wrong sensor)
mei_vsc, mei_vsc_hw (loaded)
intel_ipu7_isys (loaded)

media-ctl -d /dev/media0 -p shows 32 capture nodes from the IPU7 ISYS
but no sensor entity in the graph.

ls /sys/bus/i2c/devices/ shows:
i2c-OVTI32C4:00 -> ../../../devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-0/i2c-OVTI32C4:00