OMAP4: change MAXARGS to 32

Some boot scripts fail without this.  This makes OMAP4
the same as omap3_beagle.

Signed-off-by: John Rigby <john.rigby@linaro.org>
diff --git a/include/configs/omap4_common.h b/include/configs/omap4_common.h
index 4082791..cd6c6ab 100644
--- a/include/configs/omap4_common.h
+++ b/include/configs/omap4_common.h
@@ -221,7 +221,7 @@
 /* Print Buffer Size */
 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
 					sizeof(CONFIG_SYS_PROMPT) + 16)
-#define CONFIG_SYS_MAXARGS		16
+#define CONFIG_SYS_MAXARGS		32
 /* Boot Argument Buffer Size */
 #define CONFIG_SYS_BARGSIZE		(CONFIG_SYS_CBSIZE)