libdrm: upgrade 2.4.88 -> 2.4.89

libdrm: upgrade 2.4.88 -> 2.4.89

The 2.4.89 version has been released in Dec 18, 2017, and has a great
set of features and improvements, as seen in the announcement summary:

,----
| libdrm release with leasing and syncobj api updates,
| updated amdgpu marketing ids, amdgpu tests,
| updated uapi headers
| etnaviv updates.
`----

The full announcement can be seen at:

https://lists.freedesktop.org/archives/dri-devel/2017-December/160530.html

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>