drm/rockchip: vop2: Check linear format for Cluster windows on rk3566/8

The Cluster windows on rk3566/8 only support afbc mode.

Fixes: 604be855 ("drm/rockchip: Add VOP2 driver")
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241214081719.3330518-6-andyshrk@163.com