ASoC: msm8916-wcd-analog: add missing license information

Add the missing license and copyright information which never made it
into the analog driver when the original driver was split in two as part
of the review process.

Link: https://lkml.kernel.org/r/1465582725-30183-3-git-send-email-srinivas.kandagatla@linaro.org
Fixes: 585e881e ("ASoC: codecs: Add msm8916-wcd analog codec")
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/msm8916-wcd-analog.c

+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2016, The Linux Foundation. All rights reserved.
+
 #include <linux/module.h>
 #include <linux/err.h>
 #include <linux/kernel.h>