* updated generic_raw_uart to latest version which comes with dualcopro
support for the HmIP-RFUSB usb rf-sticks by eQ3/ELV.
* remove 99-hmip-rfusb.rules to keep a HmIP-RFUSB device free from being
occupied by the cp210x driver but use the new generic_raw_uart support
instead allowing for advanced dualcopro support for HomeMatic/BidCos-RF
and homematicIP support in parallel.
Add buildroot utils/check-package check to the pr-checks.yml workflow.
It checks for common errors/mistakes when creating own buildroot
packages. Also fixed all warnings this utility output for our existing packages.
* add eq3_char_loop package (eQ-3 char loopback kernel module)
* add generic_raw_uart package (low-latency raw UART kernel driver)
* add rpi-rf-mod package
* add device tree overlay support for RPI-RF-MOD/HM-MOD-RPI-PCB on Raspberry Pi
* enable GPIOLIB and GPIO_SYSFS required for RPI-RF-MOD/HM-MOD-RPI-PCB support.
* add basic RPI-RF-MOD/HM-MOD-RPI-PCB support for ASUS Tinker Board
* add device tree overlay support for ASUS Tinker Board and add
haos-config.txt loading support to U-Boot boot script
