drm/amd/display: make log_dpcd static

It's only used in this file.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2017-10-11 09:47:04 -04:00 • committed by Dave Airlie
commit 6563617fbb