The dmesg shared shows me that:
a) This is Linux 4.4 which we stopped all development on some time ago
b) Nearly every major kernel subsystem shows a catalogue of errors, so the booted device-tree is not an accurate description of the hardware
c) Including the SDIO subsystem, which the WiFi/BT device is attached to, hence no WLAN
I don't track Rockchip development closely so I've no idea whether there is a device-tree file upstream for your box, but I would start over with current Linux 5.9 based images, because then codebase is the upstream mainline kernel not the vendor BSP and there's half a chance of someone caring to assist. Old Linux 4.4 images are an archaeology trip .. and we moved on.