populate_sdk_base: Ensure PKGDATA_DIR exists
The code assumes that PKG_DATADIR exists and will fail if an image has not been
generated which creates it. This occurs when something like buildtools-tarball
is built which doesn't have target packages, only nativesdk ones.
Since this shouldn't be fatal, workaround this by creating the missing
directory.
(From OE-Core master rev:
319c5d55bb0c7e429766f46dd42a15e16a43c4dd)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
