deps: Use hal_stm32 with stm32c0 USB device fixes.
Pull in ZMK fork of hal_stm32 with USB device driver fixes for stm32c0.
feat: Add nBOOT_SEL bit setup for STM32 G0/C0 targets
Newer STM32 C0 and G0 series SoCs do not by default allow use of the
BOOT0 pin/button to enter the bootloader once something has been flash
to the device, which is a change from previous series, and usually not
what's wanted for keyboards running ZMK. To address this, add some
optional, but default initialization code to check the nBOOT_SEL bit and
override it if necessary to ensure BOOT pin/button functionality.
docs: Extract bootloader config into a dedicated page.
Pull the bootloader intergration options out of the system configuration
page into their own dedicated one.
Co-authored-by: Nicolas Munnich <98408764+nmunnich@users.noreply.github.com>
---------
Co-authored-by: Nicolas Munnich <98408764+nmunnich@users.noreply.github.com>
