Sync headers with drm-next
Synchronize drm.h and drm_mode.h to drm-next.
Generated using make headers_install. Generated from drm-next branch commit a60501d7c2d3e70b3545b9b96576628e369d8e85
Synchronize drm.h and drm_mode.h to drm-next.
Generated using make headers_install. Generated from drm-next branch commit a60501d7c2d3e70b3545b9b96576628e369d8e85