Samsung SSLC2000 sensor support needed for Galaxy Book6 Ultra (Panther Lake + IVSC)

## Device
- Samsung Galaxy Book6 Ultra (PAMC), Panther Lake
- Ubuntu 26.04, kernel 7.0.0-15-generic

## Loaded modules
ivsc_csi, ivsc_ace, intel_cvs, ipu_bridge — all loaded
ipu7-drivers DKMS installed

## ACPI detection
int3472-discrete INT3472:00: Found sensor SSLC2000:00
via SSDB controllogicid=0 fallback

## Problem
No v4l2-subdev driver for Samsung SSLC2000 sensor.
The sensor is detected via ACPI and IVSC stack is present,
but streaming fails — link cannot be established.

## Relation
May be related to #37 (SVP7500 / IPU7 camera support effort)