ASoC: fsl_easrc: fix comment typo

ASoC: fsl_easrc: fix comment typo

The file contains a spelling error in a source comment (funciton).

Typos in comments reduce readability and make text searches less reliable
for developers and maintainers.

Replace 'funciton' with 'function' in the affected comment. This is a
comment-only cleanup and does not change behavior.

Fixes: 955ac624058f ("ASoC: fsl_easrc: Add EASRC ASoC CPU DAI drivers")
Cc: stable@vger.kernel.org
Signed-off-by: Joseph Salisbury <joseph.salisbury@oracle.com>
Link: https://patch.msgid.link/20260316180545.144032-1-joseph.salisbury@oracle.com
Signed-off-by: Mark Brown <broonie@kernel.org>