Fix kernel-devsrc package failing during install

Fix kernel-devsrc package failing during install

This issue is due to the upstream script hardcodes /bin/awk whereas we ship /usr/bin/awk.
The installation check will break in this case. Fix it by changing the path in the script.

References:
https://lists.yoctoproject.org/pipermail/meta-intel/2017-January/004519.html
https://patchwork.openembedded.org/patch/136699/
http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-cache/commit/?h=yocto-4.9&id=d0e0a36eec57f5dfa02045776c69092c145f5000

Bug-AGL: SPEC-933

Change-Id: I8f47aca352c89eef8996670ff7c3ae26c2cb15fc
Signed-off-by: Jan-Simon Möller <jsmoeller@linuxfoundation.org>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/11173
Tested-by: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-build: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>