color: accept max_fall and max_cll even for tf different from PQ

The CM&HDR protocol extension spec relaxed the requirements for the
max_fall and max_cll setters. Now we accept such values even when the
transfer function is not PQ.

This also fixes an issue in which we'd not accept target_luminance
for transfer function different from PQ, which was not on the spec.

INCONSISTENT_SET is not being used in any other errors, so remove that
from enum weston_color_profile_param_builder_error.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>