clk: Tag clk core files with SPDX

These are all GPL-2.0 files per the existing license text. Replace the
boiler plate with the tag.

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Stephen Boyd 2018-12-11 09:43:03 -08:00
commit ebafb63dc7
7 changed files with 7 additions and 42 deletions