Fix Hantro/Gstreamer build issues

Hi Otavio/Tom/Carol,

Please consider this series to fix the build of the latest multimedia components without having to change the libc-headers version.

The issue currently is that the code relies on LINUX_VERSION_CODE but it uses the toolchain headers by default. So use the kernel builddir verion.h instead.

If you accept this approach, please leave the ownership of the imx-vpu-hantro patch as-is as it wasn't very "open-sourcy" of you to keep my previous patch/title/log but remove my SOB/ownership...

This has been tested on Nitrogen8M:
- Using a 720p MIPI display (eLCDIF output)
- Decoding SKYFALL trailer [1] gives 16fps only
- Seems that some conf is missing to achieve 30fps like before
- Here is the command used to test it:

# gst-launch-1.0 filesrc location=/home/root/SKYFALL-4K.mp4 ! \
  parsebin ! vpudec ! glimagesink

Regards,
Gary

[1] http://downloads.4ksamples.com/downloads/SKYFALL%204K%20(Ultra%20HD)%20(4ksamples.com).mp4

Gary Bisson (2):
imx-vpu-hantro: fix build issue
gstreamer1.0-plugins-base: fix build issue

 ...clusion-to-be-from-kernel-build-fold.patch | 44 +++++++++++++++++++
 .../imx-vpu-hantro/imx-vpu-hantro_1.8.0.bb    |  5 ++-
 .../gstreamer1.0-plugins-base_1.14.imx.bb     |  1 +
 3 files changed, 49 insertions(+), 1 deletion(-)
 create mode 100644 recipes-bsp/imx-vpu-hantro/imx-vpu-hantro/0002-Fix-version.h-inclusion-to-be-from-kernel-build-fold.patch

2.19.0