imx: imx8qxp_mek: increase buffer sizes and args number

The default value of CONFIG_SYS_CBSIZE is too small when we need
to input long commands or when using long kernel command line.

The default value of CONFIG_SYS_MAXARGS is too small to add a long
command line, and the kernel might not boot as intended without the
complete bootargs. Increase argument buffer sizes and the number of
arguments.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
diff --git a/include/configs/imx8qxp_mek.h b/include/configs/imx8qxp_mek.h
index cb39bcd..81ac4b5 100644
--- a/include/configs/imx8qxp_mek.h
+++ b/include/configs/imx8qxp_mek.h
@@ -196,4 +196,9 @@
 #define CONFIG_FEC_XCV_TYPE		RGMII
 #define FEC_QUIRK_ENET_MAC
 
+/* Misc configuration */
+#define CONFIG_SYS_CBSIZE	2048
+#define CONFIG_SYS_MAXARGS	64
+#define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE
+
 #endif /* __IMX8QXP_MEK_H */