kern-tools: support no author patches

kern-tools: support no author patches

Updating the kern-toosl SRCREV to pick up the following fix:

    previous versions of the kern-tools supported the ability to import a bare
    patch, with no From: Subject: or other identifying fields that are typically
    in a full commit.

    The same type of commit with kgit-s2q will prompt for a author ID, just
    as git-quilt-import does. In build system environment that leads to an
    infinite loop and the commit is never pushed.

    To fix this issue, we add an interactive flag (-i), that when passed the
    prompt based behaviour is used. When it isn't passed (the default), the following
    name and email will be used for the git author:

       GIT_AUTHOR_NAME="invalid_git config"
       GIT_AUTHOR_EMAIL="<unknown@unknown>"

    And a bare/incomplete header patch will be applied.

[YOCTO #5100]

(From OE-Core rev: cb0d8f8b9c59b351d11eef9c4951c4ce5601acb8)

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>