autotools: Limit aclocal files to those in dependencies
We still occasionally see race issues with cp-noerror, and it copies
too many files, we should limit the the m4 files to those explicitly in
the DEPENDS for the recipe.
This change takes advantage of the BB_TASKDEPDATA data from bitbake to
only copy in those files listed in the manifest of the recipes in DEPENDS.
I've had this testing locally for some time, its ready for wider
review/testing.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
