drivers/ddr/fsl: Disabling data init if ECC is not enabled

If ECC is not enabled, data init can be disabled to speed up booting.

Signed-off-by: York Sun <york.sun@nxp.com>
diff --git a/drivers/ddr/fsl/options.c b/drivers/ddr/fsl/options.c
index d0075ff..793d12a 100644
--- a/drivers/ddr/fsl/options.c
+++ b/drivers/ddr/fsl/options.c
@@ -886,7 +886,8 @@
 	} else
 		popts->ecc_mode = 1;
 #endif
-	popts->ecc_init_using_memctl = 1; /* 0 = use DMA, 1 = use memctl */
+	/* 1 = use memory controler to init data */
+	popts->ecc_init_using_memctl = popts->ecc_mode ? 1 : 0;
 
 	/*
 	 * Choose DQS config