[PATCH v2] clk: meson: use SPDX license identifiers consistently

[Jerome Brunet]

On Wed, 2018-05-16 at 08:03 -0700, Stephen Boyd wrote:
> Quoting Jerome Brunet (2018-05-16 01:50:40)
> > Replace every license notices in drivers/clk/meson by SPDX license
> > identifiers, as described in license-rules.rst
> > 
> > Acked-by: Neil Armstrong <narmstrong at baylibre.com>
> > Signed-off-by: Jerome Brunet <jbrunet at baylibre.com>
> > ---
> 
> Acked-by: Stephen Boyd <sboyd at kernel.org>
> 
> I take it this will come through a PR? Otherwise I can apply it to
> clk-meson branch.

We may have a few other patches coming this week. I was planning on making
another PR sometime next week, if this is OK with you.