* rock-5b: add initial raxda rock-5b .wip (by @amazingfate); vendor u-boot & kernel
- .wip board
- using BOARDFAMILY `rk35xx`, which was for rock-3a
- patch by @piter75 uboot for working 'source' command so boot.scr can be used, and not extlinux
- .config: hammer CONFIG_JOYSTICK_XPAD & CONFIG_JOYSTICK_PSXPAD_SPI
- rock5 add kernel optiions by @lanefu
- disable CONFIG_LOCALVERSION_AUTO otherwise packaging goes insane
- make its kernel is own LINUXFAMILY to as to not mess up rock-3a
- CONFIG_VT=y & SKIP_BOOTSPLASH="yes"
* Add separate family for rock 5b - rockchip-rk3588
Co-authored-by: amazingfate <liujianfeng1994@gmail.com>
Co-authored-by: root <catalinii@yahoo.com>