All of the other multiconfig splitting functions are located in runqueue
so move the function to split a pn/fn there also so that its easier to
see them all together. Fixes a case where the findBestProvider() command
wasn't working for multiconfig because it was looking for a prefix of
"multiconfig:" instead of the newer "mc:"
(Bitbake rev: 325827af66434affc2da460cc8b9a5c460e38056)
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>