drm/edid: Clear out spurious whitespace

Nuke some whitespace that shouldn't be there.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200124200231.10517-4-ville.syrjala@linux.intel.comReviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>