ASoC: imx-sgtl5000: Switch to SPDX identifier

Adopt the SPDX license identifier headers to ease license compliance
management.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Fabio Estevam 2018-07-24 09:48:33 -03:00 • committed by Mark Brown
commit 6b24e03ecf
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