sstatesig: Move saferecipedeps handling to be earlier

We want to use the saferecipedeps handling code to allow gcc-cross-* to
work on multiple different tunes. Its currently in target only code
so it needs to be earlier to allow it to work on native-> target
dependencies.

This change has no effect on existing uses but makes gcc-cross become
shared as desired.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>