Ignoring the changes for adding support for the V2N, there's many changes that have been done for the V2N that are missing for the V2H:
drivers/gpu/drm/bridge/adv7511/adv7533.c
drivers/media/platform/rzg2l-cru/rzg2l-dma.c
drivers/net/can/rcar/rcar_canfd.c
drivers/thermal/rzv2h_thermal.c
I think there's two options:
- Cherry-pick onto this branch the missing commits.
- Make the V2H and the V2N have the same kernel branch which I feel is the best option and will prevent the branches ever diverging again