mesa: Upgrade 17.3.8 -> 18.0.2

mesa: Upgrade 17.3.8 -> 18.0.2

This includes changes from Mesa 18.0.0 and 18.0.2 releases.

Mesa 18.0.0 is a new development release and 18.0.1 and 18.0.2 are
bug-fix releases.

You can find release notes here:

  - https://mesa3d.org/relnotes/18.0.0.html
  - https://mesa3d.org/relnotes/18.0.1.html
  - https://mesa3d.org/relnotes/18.0.2.html

Remove patch 0001-st-dri-Initialise-modifier-to-INVALID-for-DRI2.patch
that was applied on upstream.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Ross Burton <ross.burton@intel.com>