opkg: upgrade to version 0.4.1

opkg: upgrade to version 0.4.1

- Drop 0001-libopkg-add-add-ignore-recommends-option.patch
- Drop 0001-opkg-add-target-for-testsuite-installation.patch
- Drop 0001-regress-issue72.py-resolve-paths-before-comparision.patch
- Remove test binaries tests\libopkg_test, leftovers from make dist
process

Signed-off-by: Alejandro del Castillo <alejandro.delcastillo@ni.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>