Add mcu_2_ecspi script to fix ecspi errata ERR009165. Signed-off-by: Robin Gong <yibin.gong@nxp.com> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>