This patch altered the clean target's behaviour to skip the ipkg-install
directory. However this directory isn't created by opkg, opkg-utils, or the
package_ipk class; and we don't invoke the clean target as we perform
out-of-tree builds.
(From OE-Core rev: 9f8bd475701e5d797d3ffc1ba97647101ba0b9b0)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>