[arm64] udeb: Add mtk-cmdq-mailbox to kernel-image

The mtk-cmdq-helper driver included in the kernel-image udeb as an SoC driver used to explicitly depend on mtk-cmdq-mailbox which means the latter was also included in kernel-image. This dependency is somehow missing in v6.14, so the latter module ends up being dropped from the udeb. However, missing this module either breaks or at least degrades display initialization, so there is an implicit dependency.

Since the mtk-cmdq-mailbox module is already in kernel-image on v6.12 builds, explicitly list it in that module list to fix display on the installer.

Signed-off-by: Alper Nebi Yasak alpernebiyasak@gmail.com