This commit adds a new _cleanup() internal method that will be called at
the end of rootfs creation, so that each backend can delete various
files that were probably generated during rootfs postprocess execution,
etc.
[YOCTO #6049]
(From OE-Core rev: 6151d69875f3f4f097b6e2fdef2a0f3ab391e2fd)
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>