The TUNE_PKGARCH of crosssdk should be set to SDK_ARCH, not the one
from target machine's configuration.
Fixed bug [YOCTO #2206]
(From OE-Core rev: e809b6657c53616a82e73d2f20ec23bc50ccebc9)
Signed-off-by: Lianhao Lu <lianhao.lu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>