exynos: Increase command line buffer size (CONFIG_SYS_CBSIZE)

I was running into this limit with a not overly long PXE append line.

Since the PXE code wants to print the resulting command line increase
CONFIG_SYS_PBSIZE too.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

include/configs/exynos-common.h

@@ -74,8 +74,8 @@
 #define CONFIG_PARTITION_UUIDS
 
 /* Miscellaneous configurable options */
-#define CONFIG_SYS_CBSIZE		256	/* Console I/O Buffer Size */
-#define CONFIG_SYS_PBSIZE		384	/* Print Buffer Size */
+#define CONFIG_SYS_CBSIZE		1024	/* Console I/O Buffer Size */
+#define CONFIG_SYS_PBSIZE		1024	/* Print Buffer Size */
 #define CONFIG_SYS_MAXARGS		16	/* max number of command args */
 
 /* Boot Argument Buffer Size */