Fix double unlock of fe card mutex introduced by patch 8f70e515
"ASoC: soc-pcm: fix dpcm_path_get error handling"

The first unlock is at line 106, and the unlock is at line 149. we
should remove the first unlock.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NQiao Zhou <zhouqiao@marvell.com>
Signed-off-by: NMark Brown <broonie@kernel.org>