ASoC: pcm6240: Remove unnecessary NULL check before release_firmware()
release_firmware() checks for NULL pointers internally.
Remove unneeded NULL check for fmw here.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://patch.msgid.link/20250407062352.2771861-1-nichen@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
authored by