mangopi-mq-pro: new device

wiki page : https://wiki.postmarketos.org/wiki/MangoPi_MQ-Pro_(mangopi-mq-pro)

Currently Status :

The uboot is missing the system variable `kernel_comp_addr_r` and ` kernel_comp_size`

The uboot currently cant boot into the kernel after i setted the system variable kernel_comp_addr_r to 44000000 and kernel_comp_size 0xb000000 The currently plan for this port is getting uboot to boot grub via uefi and boot postmarket os from grub . However grub on alpline riscv64 is broken . https://gitlab.alpinelinux.org/alpine/aports/-/issues/14495

Pm os boot via grub and uboot (using grub at secondly bootloader).