drivers: modem: wncm14a2a: Explicitly ignore unused return value

Coverity complains about unchecked return value for `k_sem_take` which
is called with `K_FOREVER` and thus cannot expire/timeout. Explicity
ingore the return value to silence Coverity.

CID: 219676
Fixes #33019

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
1 file changed