libdrm: wrap new flexible syncobj query interface v2

v2: nit-picks fix

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Christian König <Christian.Koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
For the xf86drm.[ch] part : Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
4 jobs for master in 3 minutes and 35 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed latest-autotools #771630

00:03:34

passed latest-meson #771629

00:02:51

passed oldest-autotools #771632

00:02:46

passed oldest-meson #771631

00:02:06