tests: drivers: i2s: Add tests at typical audio sample rates

Add short transfer test at 8000, 16000, 32000, 44100, 48000, 88200
and 96000 frame clock frequency.

Add KConfigs to skip test cases based on value of sample rate.

Add configuration for nrf5340dk where i2s peripheral is clocked
from ACLK.

Signed-off-by: Sebastian Głąb <sebastian.glab@nordicsemi.no>
4 files changed