ColdFire 5282: Fix external flash boot and return dramsize

Signed-off-by: TsiChungLiew <Tsi-Chung.Liew@freescale.com>
diff --git a/board/m5282evb/m5282evb.c b/board/m5282evb/m5282evb.c
index 243d6a4..7d6d1d6 100644
--- a/board/m5282evb/m5282evb.c
+++ b/board/m5282evb/m5282evb.c
@@ -89,4 +89,5 @@
 		/* Write to the SDRAM Mode Register */
 		*(u32 *)(CFG_SDRAM_BASE + 0x400) = 0xA5A59696;
 	}
+	return dramsize;
 }