plat: imx8mq: update the ddr controller perf QoS setting

update the ddr controller perf QoS setting on i.MX8MQ.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
(cherry picked from commit 7b62aea017c0366b5132dedfe9711cd094cd5cc3)
1 file changed