powerpc/85xx: Bump up the CONFIG_SYS_BOOTM_LEN to 16M on FSL 85xx boards

CONFIG_SYS_BOOTMAPSZ has been 16M on these boards for some time so we
should also allow the kernel image to be up to 16M decompressed.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/configs/MPC8569MDS.h b/include/configs/MPC8569MDS.h
index 3372d18..9e24e12 100644
--- a/include/configs/MPC8569MDS.h
+++ b/include/configs/MPC8569MDS.h
@@ -593,8 +593,8 @@
  * have to be in the first 16 MB of memory, since this is
  * the maximum mapped by the Linux kernel during initialization.
  */
-#define CONFIG_SYS_BOOTMAPSZ	(16 << 20)
-					/* Initial Memory map for Linux*/
+#define CONFIG_SYS_BOOTMAPSZ	(16 << 20) /* Initial Memory map for Linux*/
+#define CONFIG_SYS_BOOTM_LEN	(16 << 20)	/* Increase max gunzip size */
 
 #if defined(CONFIG_CMD_KGDB)
 #define CONFIG_KGDB_BAUDRATE	230400	/* speed to run kgdb serial port */