This moves the picolibc configuration values under C-library -> picolibc
so that they will be more easily discovered.
Signed-off-by: Joakim Nohlgård <joakim@nohlgard.se>
This adds support for using picolibc instead of newlib on embedded
systems.
Signed-off-by: Keith Packard <keithp@keithp.com>
v2:
Add check for meson and ninja
Sync option default values with current picolibc defaults
Remove xtensa sys header file install as those aren't in picolibc
