[oe] [PATCH] update-alternatives-cworth: use /usr/lib/opkg/alternatives directory instead of /usr/lib/ipkg/alternatives

[Martin Jansa]

I've already pushed it to shr/merge branch with temporary D_P = -1 in
new busybox. Please review if its good enough for oe.dev.

BTW: same postinst should be added to opkg, to fix the issue also on
systems where u-a-cworth was removed already, or used only for
building image. And if its part of opkg postinst we can remove
-cworth.

Does opkg upgrade itself before upgrading other stuff? As we need to
force "alternatives merge" with opkg or u-a-cworth bump, before ie
busybox upgrade.

Cheers,