CVE-2022-49421 video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: clcdfb: Fix refcount leak in clcdfbofvramsetup ofparsephandle returns a node pointer with refcount incremented, we should use ofnodeput on it when not need anymore. Add missing ofnodeput to avoid refcount leak...