ColdFire: Provide gzip image size V2 & V3 platforms

Default gzip bootm size is 8MB. Some platforms require
more than 8MB

Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
diff --git a/include/configs/M5253EVBE.h b/include/configs/M5253EVBE.h
index 86de97d..cf8b773 100644
--- a/include/configs/M5253EVBE.h
+++ b/include/configs/M5253EVBE.h
@@ -164,6 +164,7 @@
  * the maximum mapped by the Linux kernel during initialization ??
  */
 #define CONFIG_SYS_BOOTMAPSZ		(CONFIG_SYS_SDRAM_BASE + (CONFIG_SYS_SDRAM_SIZE << 20))
+#define CONFIG_SYS_BOOTM_LEN		(CONFIG_SYS_SDRAM_SIZE << 20)
 
 /* FLASH organization */
 #define CONFIG_SYS_FLASH_BASE		CONFIG_SYS_CS0_BASE