Packagegroups have "special" sstate signature behaviour in that they don't rebuild
when their dependencies do. This causes problems for SPDX task signatures. Since
packagegroups don't actually have any code in them, we don't need the standard
dependencies anyway so cancel out and allow the sstate signatures to function
correctly.
(From OE-Core rev: 5c4ed243c144e261eae5f2ccf5626371d87a8a43)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Move classes to classes-global or classes-recipe as appropriate to take
advantage of new bitbake functionality to check class scope/usage.
(From OE-Core rev: f5c128008365e141082c129417eb72d2751e8045)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>