Integrate meta-seconorth-distro/sdk_add_gles3_headers
Commit: seco-ne/yocto/layers/meta-seconorth-distro@a5daddef
SDK: add missing GLES3 headers
In Dunfell the poky Mesa recipe always explicitely includes the GLES3-headers, (even with a comment "Add dependency so that GGLES3 headers don't need to be added manually"). NXP's Vivante driver recipes do the same.
For some reason this has been removed in the Kirkstone poky Mesa recipe, resulting in the GLES3-headers missing in the SDK and thus causing Qt-apps to fail compilation, because some Qt-headers expect the GLES3 headers.
This patch adds the explicit includes of the GLES3-headers (this time in out own layer, though).