kernel-yocto.bbclass: ensure repatching when HEAD is checked out
In some cases it is seen that kernel_checkout and validate_branches are
run again in simultaneous builds. During do_patch the kgit-s2q mechanism
looks for a sentinel file inside the .git directory, finds a fence post
and starts picking up patches after that.
This can create trouble as validate_branches checks out the HEAD of the
branch and so the patches should be reapplied rather than skipped due to
finding of the fence post.
We can call kgit-s2q --clean to remove the sentinel file when the
branches are checked out.
Signed-off-by: Awais Belal <awais_belal@mentor.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
