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/P1022DS.h b/include/configs/P1022DS.h
index 272bd9f..2b8fc7d 100644
--- a/include/configs/P1022DS.h
+++ b/include/configs/P1022DS.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010 Freescale Semiconductor, Inc.
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
  * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
  *          Timur Tabi <timur@freescale.com>
  *
@@ -400,6 +400,7 @@
  * the maximum mapped by the Linux kernel during initialization.
  */
 #define CONFIG_SYS_BOOTMAPSZ	(16 << 20)	/* Initial Memory map for Linux*/
+#define CONFIG_SYS_BOOTM_LEN	(16 << 20)	/* Increase max gunzip size */
 
 #ifdef CONFIG_CMD_KGDB
 #define CONFIG_KGDB_BAUDRATE	230400	/* speed to run kgdb serial port */