"Always true" comparison

[mattgodbolt]

With warnings on, gcc will complain that:

pico-sdk/src/rp2_common/hardware_sync/sync.c

Line 25 in 2d5789e

assert(lock_num >= 0 && lock_num < NUM_SPIN_LOCKS);

error: comparison of unsigned expression >= 0 is always true [-Werror=type-limits]
   25 |     assert(lock_num >= 0 && lock_num < NUM_SPIN_LOCKS);

which is indeed true. Perhaps a little picky, but by definition the unsigned parameter lock_num is >= 0.

Ditto in lock_core.c:10

[kilograham]

true dat... i think at one point these were signed!

[kilograham]

merged into develop