update-alternatives: Fix determinism issue
getVarFlags returns a dict and there is therefore no sort order. This
means the order of the X_VARDEPS_X variables can change and hence the
task checksums can change. This can lead to rebuilds of any parts of
the system using update-alternatives and their dependees. This is a
particular issue under python v3.
Add in a sort to make the order of the variables deterministic.
(From OE-Core rev:
ecd1bfed5534f83b775a6c79092c04bd13c3af0a)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
