We need to add a build time dependency on virtual/update-alternatives,
however we can't just do DEPENDS +=, or we end up with various problems. To
work around this, in the anonymous python space we ensure we only do the
addition when the package does not provide virtual/update-alternatives and
it is a target package.
Also the system wide PREFERRED_PROVIDER was incorrect. It references a
runtime package, and not the recipe it should have. This has been corrected.
[YOCTO #3691]
Signed-off-by: Mark Hatle <mark.hatle@windriver.com> Tested-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
