Bump libva to libva 1.4.1.pre1

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
drm: add support for render nodes.

Allow vaGetDisplayDRM() to accept DRM Render-Nodes file descriptors,
thus skipping authentication burdens in that case. This also allows
remote users, connected through ssh for instance, to enjoy hardware
acceleration even if there is a local display opened (user logged in).

Signed-off-by: Andrey Larionov <andrey.larionov@intel.com>
[checked if fd is a render-node, fixed VA_DISPLAY_DRM_RENDERNODES]
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Reviewed-by: Sean V Kelley <sean.v.kelley@intel.com>
Tested-by: Rafal A Sapala <rafal.a.sapala@intel.com>

(cherry picked from commit 936f548d999afc44918f869f8c54fc82c5400ad9)
tests: try a render-node device first for VA/DRM displays.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Reviewed-by: Sean V Kelley <sean.v.kelley@intel.com>
(cherry picked from commit e5d6c49c54ed7f6e1dacf9bafaae8fa0ba88db5d)
doc: don't add timestamps in generated documentation.

(cherry picked from commit 3a5a1c46404354f3a8911149f65c568a3166395c)
doc: improve Doxyfile configuration.

(cherry picked from commit 1f72a26774316af0e5b277271261213e02972234)
doc: add Encoding, VPP and some of Core APIs.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
(cherry picked from commit 1846d6f73b3e7f46737d794d9d0b09d25302b64a)
doc: fix scan order specification for quantization tables.

Fix the VA-API specification to define all quantization tables, resp.
matrices, to be supplied in zig-zag scan order, except for the H.264
codec where scaling lists shall be provided in raster scan order.

This clarifies the existing usage inherited from the primary VA driver
implementation (Intel Poulsbo), and subsequently adopted by the major
multimedia frameworks.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
(cherry picked from commit 835cf1ceef84cd48edddfb07bb1d2348c7b35940)
libva 1.4.1

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
libva 1.4.2.pre1 for development

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>