Tthe kernel populate_sysroot can come from sstate, we need the full
source here. We therefore depend on the configure task which isn't
covered by sstate to ensure we get the right set of files.
(From OE-Core rev: c3598cf720e04ab27ab5d2817c09f2496b677560)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>