[Core] Add support for RISC-V builds and GD32VF103 MCU (#12508)

* Add support for RISC-V builds and GD32VF103 MCU

* Add toolchain selection in chibios.mk based on the mcu selected in
mcu_selection.mk
* Reorder and added comments to chibios.mk to have a streamlined makefile
* Add GD32VF103 mcu to possible targets for QMK.
* Add STM32 compatibility for GD32VF103 MCU, this is hacky but more efficent
  then rewriting every driver.
* Add GigaDevice DFU bootloader as flash target, please note that
  dfu-util of at least version 0.10 is needed.
* Add analog driver compatibility
* Add apa102 bitbang driver compatibility
* Add ws2812 bitbang driver compatibility
* Add eeprom in flash emulation compatibility
* Allow faster re-builds with ccache

* Add SiPeed Longan Nano to platform files

* Add SiPeed Longan Nano Onekeys

* Make quine compatible with other bootloaders

* Support builds with picolibc

* Add risc-v toolchain to arch and debian/ubuntu scripts

2 files changed, 4 insertions, 2 deletions

diff --git a/util/install/arch.sh b/util/install/arch.sh
index bef98ac37..33c39212d 100755
--- a/util/install/arch.sh
+++ b/util/install/arch.sh
@@ -6,7 +6,8 @@ _qmk_install() {
     sudo pacman --needed  --noconfirm -S \
         base-devel clang diffutils gcc git unzip wget zip python-pip \
         avr-binutils arm-none-eabi-binutils arm-none-eabi-gcc \
-        arm-none-eabi-newlib avrdude dfu-programmer dfu-util
+        arm-none-eabi-newlib avrdude dfu-programmer dfu-util \
+        riscv64-elf-binutils riscv64-elf-gcc riscv64-elf-newlib
     sudo pacman --needed --noconfirm -U https://archive.archlinux.org/packages/a/avr-gcc/avr-gcc-8.3.0-1-x86_64.pkg.tar.xz
     sudo pacman --needed --noconfirm -S avr-libc # Must be installed after the above, or it will bring in the latest avr-gcc instead
 
diff --git a/util/install/debian.sh b/util/install/debian.sh
index 57588e371..2a188334b 100755
--- a/util/install/debian.sh
+++ b/util/install/debian.sh
@@ -15,7 +15,8 @@ _qmk_install() {
         build-essential clang-format diffutils gcc git unzip wget zip \
         python3-pip binutils-avr gcc-avr avr-libc binutils-arm-none-eabi \
         gcc-arm-none-eabi libnewlib-arm-none-eabi avrdude dfu-programmer \
-        dfu-util teensy-loader-cli libhidapi-hidraw0 libusb-dev
+        dfu-util teensy-loader-cli libhidapi-hidraw0 libusb-dev \
+        picolibc-riscv64-unknown-elf gcc-riscv64-unknown-elf binutils-riscv64-unknown-elf
 
     python3 -m pip install --user -r $QMK_FIRMWARE_DIR/requirements.txt
 }