The more.musl.cc site is blocking downloads from all github actions,
which makes it difficult to use that site for the ar100 cross build
toolchain. Convert to the openrisc or1k-elf toolchain as a
replacement.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add a new HAVE_LIMITED_CODE_SIZE symbol that enables a menu to select
optional features. This symbol is enabled on chips with small build
sizes.
Replace the HAVE_GPIO_BITBANGING with four new symbols:
WANT_GPIO_BITBANGING, WANT_DISPLAYS, WANT_SENSORS, WANT_SOFTWARE_SPI,
and WANT_SOFTWARE_I2C. This allows users a little more flexibility
when selecting features they need.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>