CVE-2026-98998 drm/bridge: th1520-dw-hdmi: Fix remove() callback

The Linux kernel contains a vulnerability in the drm/bridge: th1520-dw-hdmi driver. The issue stems from a type mismatch during the removal process: the driver stores a struct th1520_hdmi * in the platform drvdata, but the th1520_dw_hdmi_remove() function incorrectly reads it back as struct dw_hd...