lx2160: Correct default environment variable

Create separate "boot_scripts" and "boot_script_hdr" environment
variable for LX2160A RDB and QDS board.

Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/include/configs/lx2160ardb.h b/include/configs/lx2160ardb.h
index c6bacb6..de385f8 100644
--- a/include/configs/lx2160ardb.h
+++ b/include/configs/lx2160ardb.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- * Copyright 2018 NXP
+ * Copyright 2018,2020 NXP
  */
 
 #ifndef __LX2_RDB_H
@@ -89,6 +89,8 @@
 /* Initial environment variables */
 #define CONFIG_EXTRA_ENV_SETTINGS		\
 	EXTRA_ENV_SETTINGS			\
+	"boot_scripts=lx2160ardb_boot.scr\0"	\
+	"boot_script_hdr=hdr_lx2160ardb_bs.out\0"	\
 	"lx2160ardb_vdd_mv=800\0"		\
 	"BOARD=lx2160ardb\0"			\
 	"xspi_bootcmd=echo Trying load from flexspi..;"		\