Check the return type of zynqmp_pm_query_data(qdata, ret_payload);

Addresses-Coverity: Event check_return
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Link: https://lore.kernel.org/r/20220406092211.19017-1-shubhrajyoti.datta@xilinx.comAcked-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>