OMAP3/4: Increase console I/O buffer size

Increase the console I/O buffer size (SYS_CBSIZE) to 512 (from 256)
required especially for bootargs string, as multiple options
(e.g Video settings) are passed to the kernel through bootargs.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/include/configs/omap3_overo.h b/include/configs/omap3_overo.h
index d6e0a06..821a8a3 100644
--- a/include/configs/omap3_overo.h
+++ b/include/configs/omap3_overo.h
@@ -213,7 +213,7 @@
 #define CONFIG_SYS_HUSH_PARSER		/* use "hush" command parser */
 #define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
 #define CONFIG_SYS_PROMPT		"Overo # "
-#define CONFIG_SYS_CBSIZE		256	/* Console I/O Buffer Size */
+#define CONFIG_SYS_CBSIZE		512	/* Console I/O Buffer Size */
 /* Print Buffer Size */
 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
 					sizeof(CONFIG_SYS_PROMPT) + 16)