CVE-2025-37971 staging: bcm2835-camera: Initialise dev in v4l2_dev

In the Linux kernel, the following vulnerability has been resolved: staging: bcm2835-camera: Initialise dev in v4l2dev Commit 42a2f6664e18 "staging: vc04services: Move global gstate to vchiqstate" changed mmalinit to pass dev-v4l2dev.dev to vchiqmmalinit, however nothing iniitialised dev-v4l2dev,...