SDKPKGSUFFIX could only really be "nativesdk" and TARGET_SYS never contains
that so the code manipulating TARGET_SYS is pointless. I suspect this once
worked against MULTIMACH_TARGET_SYS which would be a different question but
it no longer does. Its been cut and pasted everywhere.
This patch cleans up the variable references to make things a little more
readable.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
