mesa: Avoid Vivante GPU headers conflict for gl.h and glext.h
The new GPU release include new GL headers which conflict with the
ones provided by mesa. The build fails with:
,----
| ERROR: The recipe imx-gpu-viv is trying to install files into a shared
| area when those files already exist. Those files and their manifest
| location are:
|
| .../build-framebuffer/tmp/sysroots/imx6qsabresd/usr/include/GL/gl.h
| Matched in manifest-imx6qsabresd-mesa.populate_sysroot
|
| .../build-framebuffer/tmp/sysroots/imx6qsabresd/usr/include/GL/glext.h
| Matched in manifest-imx6qsabresd-mesa.populate_sysroot
`----
This removes of the mesa's headers so the ones provided by Vivante are
used instead.
Fixes [Yocto: #5098].
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
