Instead of a local copy, use the memcat_p() helper to merge policy
node attributes.
Signed-off-by: NAlexander Shishkin <alexander.shishkin@linux.intel.com>
Tested-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>