rockchip64-6.6/6.12/6.13: rk3308b: add vop and internal rgb lcdc output

[TheSnowfield]

Description

• add rk3308 vop registers and probe match string rockchip,rk3308-vop
• dtsi: add lcdc pinctrl definitions
• dtsi: add display system
• enable lcdc pinmux after initializing rgb, see rockchip_rgb.c
• use full blobs to boot for sakurapi-rk3308b

How Has This Been Tested?

./compile.sh BOARD=sakurapi-rk3308b BRANCH=current KERNEL_BTF=yes

everything works okay.

• rk3308 vop & internal rgb output

[paolosabatino]

Looks fine to me, except for the fact that the patch has been introduced for rockchip64 kernel 6.6 and 6.12, but the current kernel is 6.12 and edge is 6.13; @TheSnowfield you should introduce the patches for edge 6.13 too, or probably they will miss the forthcoming bump of edge to 6.14

[ssp97]

It works.

[TheSnowfield]

Looks fine to me, except for the fact that the patch has been introduced for rockchip64 kernel 6.6 and 6.12, but the current kernel is 6.12 and edge is 6.13; @TheSnowfield you should introduce the patches for edge 6.13 too, or probably they will miss the forthcoming bump of edge to 6.14

Thanks for your advice, I've done my work :)