ColdFire: Update bootargs

Add a bootargs for M53017EVB and update bootargs
for M54451EVB

Signed-off-by: TsiChung Liew <tsicliew@gmail.com>
diff --git a/include/configs/M53017EVB.h b/include/configs/M53017EVB.h
index 801f90f..30855bd 100644
--- a/include/configs/M53017EVB.h
+++ b/include/configs/M53017EVB.h
@@ -77,6 +77,9 @@
 #	define CONFIG_SYS_FEC1_PINMUX	0
 #	define CONFIG_SYS_FEC1_MIIBASE	CONFIG_SYS_FEC1_IOBASE
 #	define MCFFEC_TOUT_LOOP		50000
+
+#	define CONFIG_BOOTARGS		"root=/dev/mtdblock3 rw rootfstype=jffs2"
+
 /* If CONFIG_SYS_DISCOVER_PHY is not defined - hardcoded */
 #	ifndef CONFIG_SYS_DISCOVER_PHY
 #		define FECDUPLEX	FULL