ASoC: SDCA: Always free firmware in FDL path

ASoC: SDCA: Always free firmware in FDL path

In the case a disk firmware exists but is invalid and no SWFT firmware
exists fdl_load_file() will return without calling release_firmware().
Update the code to call this to ensure the firmware is released on the
error path.

Fixes: 71f7990a34cd ("ASoC: SDCA: Add FDL library for XU entities")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://patch.msgid.link/20260722103500.872714-3-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>