ASoC: fsl_aud2htx: Remove dev_err() usage after platform_get_irq()

platform_get_irq() would print error message internally, so dev_err()
after platform_get_irq() is not needed

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/1604715643-29507-1-git-send-email-shengjiu.wang@nxp.com


Signed-off-by: Mark Brown <broonie@kernel.org>