ASoC: imx-hdmi: add put_device() after of_find_device_by_node()

ASoC: imx-hdmi: add put_device() after of_find_device_by_node()

[ Upstream commit f670b274f7f6f4b2722d7f08d0fddf606a727e92 ]

This was found by coccicheck:
./sound/soc/fsl/imx-hdmi.c,209,1-7,ERROR  missing put_device; call
of_find_device_by_node on line 119, but without a corresponding object
release within this function.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Ye Guojin <ye.guojin@zte.com.cn>
Link: https://lore.kernel.org/r/20211110002910.134915-1-ye.guojin@zte.com.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>