lib/igt_kms: Add functions to get only a single output for a pipe, v2.

igt_get_single_output_for_pipe() will give a valid output for a pipe,
for_each_pipe_with_single_output will iterate over all pipes, and
will be called for each pipe with an output once.

Changes since v1:
- pipe = __outputs - __output returned a negative number for pipe,
  correctly set it to __output - __outputs.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

0 files changed, 0 insertions, 0 deletions