ASoC: rt1320: fix the warning 'rae_fw' from request_firmware() not released

ASoC: rt1320: fix the warning 'rae_fw' from request_firmware() not released

New smatch warnings:
sound/soc/codecs/rt1320-sdw.c:1575 rt1320_rae_load() warn: 'rae_fw' from
request_firmware() not released on lines: 1575.

Fixes: 22937af75abb ("ASoC: rt1320: support RAE parameters loading")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202604111548.EL450PMb-lkp@intel.com/
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://patch.msgid.link/20260414071441.1524039-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>