x86: add Gowin 1U Rack Mount Router Server

x86: add Gowin 1U Rack Mount Router Server

There are three variants of that board:

--- Hardware Highlights ---
GW-BS-1UR1-10G:
 - CPU: Intel® Alder Lake N100 quad-core 3.4GHz
 - RAM: 16GB DDR5 4800MHz
 - Storage: Onboard 128GB eMMC, 2x NVME slots, 2x SATA slots
 - Ports: 2x 2.5G, 2x 1G, 1x POE, 2x 10G SFP+, 1x RJ45 Serial Port
 - WIFI: 1x M.2 slot
 - 4G/5G: 1x M.2 slot
 - USB: 2x 3.0, 2x 2.0
 - Button: 1x Power Button
 - Video: 1x HDMI, 1x VGA
 - LEDs: 4x

GW-BS-1UR2-10G:
 - CPU: Intel® Core™ i3-N305 octa-core 3.8GHz
 - RAM: 32GB DDR5 4800MHz
 - Storage: Onboard 128GB eMMC, 2x NVME slots, 2x SATA slots
 - Ports: 2x 2.5G, 2x 1G, 1x POE, 2x 10G SFP+, 1x RJ45 Serial Port
 - WIFI: 1x M.2 slot
 - 4G/5G: 1x M.2 slot
 - USB: 2x 3.0, 2x 2.0
 - Button: 1x Power Button
 - Video: 1x HDMI, 1x VGA
 - LEDs: 4x

GW-BS-1UR2-25G:
 - CPU: Intel® Core™ i3-N305 octa-core 3.8GHz
 - RAM: 32GB DDR5 4800MHz
 - Storage: Onboard 128GB eMMC, 2x NVME slots, 2x SATA slots
 - Ports: 2x 2.5G, 2x 1G, 1x POE, 2x 25G SFP+, 1x RJ45 Serial Port
 - WIFI: 1x M.2 slot
 - 4G/5G: 1x M.2 slot
 - USB: 2x 3.0, 2x 2.0
 - Button: 1x Power Button
 - Video: 1x HDMI, 1x VGA
 - LEDs: 4x

Signed-off-by: Til Kaiser <mail@tk154.de>
Link: https://github.com/openwrt/openwrt/pull/16560
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>