The existing code doesn't tell regular (with .git) and bare cases and
just move the unpacked repo to the place of kernel source. But later
steps will fail on a bare-cloned repo because we can not checkout
directly in a bare cloned repo.
This change performs another clone to fix the issue.
Note: This change doesn't cover the case that S and WORKDIR are same
and the repo is bare cloned.
Signed-off-by: Jianxun Zhang <jianxun.zhang@linux.intel.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
