Update Purism coreboot to 24.02.01-Purism-1.
Remove CFLAGS overrides when building coreboot. These overrides break
24.02.01, which added (and needs) --param=min-pagesize=1024. This has
happened repeatedly in the past since Heads has to duplicate coreboot's
CFLAGS if it overrides them.
Specifically, the build fails with this error:
src/commonlib/include/commonlib/endian.h:27:26: error: array subscript 1 is outside array bounds of 'void[0]' [-Werror=array-bounds=]
27 | *(uint8_t *)dest = val;
| ~~~~~~~~~~~~~~~~~^~~~~
In function 'setup_default_ebda':
cc1: note: source object is likely at address zero
That's because coreboot is attempting to write to EBDA at physical
address 0x40e, just above 1024. That is a valid address for x86, but
it's too close to 0 by default for GCC, --param-min-pagesize=1024
allows writes to physical addresses above 1024.
coreboot shouldn't need any of the usual Heads CFLAGS overrides for
reproducibility; it is already reproducible.
Fix indentation in modules/coreboot. Make accepted it before because
the indented lines followed a variable assignment, so they couldn't
be part of a recipe. That assignment is now gone, so they're now
interprted as part of a recipe for the `.configured` target just above,
they should not be indented.
Add nss to flake.nix, needed as of 24.02.01.
Update Librem coreboot configs for 24.02.01-Purism-1. Notably, the
board Kconfig changed for Mini v2 in coreboot, so this is needed for
correct builds.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>