libva 1.4.2.pre1 for development

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

Conflicts:
	configure.ac
Extended existing JPEG encoding data structures and added configuration attribute for JPEG encoding.

It is the combination of 1d93d44 and 970064cf

Signed-off-by: Jonathan Bian <jonathan.bian@intel.com>
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
[Resovle conflicts & remove irrelevant attributes]
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
vatrace: trace JPEG encode parameters

Signed-off-by: Austin Yuan <shengquan.yuan@intel.com>
(cherry picked from commit e468728f9e49603f91ccbce3a232aa3bd98d1fd4)

Conflicts:
	va/va_trace.c
	va/va_trace.h
JPEG Encode: Added Unit Test for testing jpeg encode feature.

(cherry picked from commit 9d01b4468f89391892e31efc5bbec774ea781242)
va_drm_authenticate fail in sandbox
t
t
tt
t