include/configs: ls1012a: Remove fdt_high env variable

Remove "fdt_high" environment variable to use the bootm_size
to safely contain a kernel, device tree and initrd for
relocation.

Signed-off-by: Udit Agarwal <udit.agarwal@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/include/configs/ls1012afrdm.h b/include/configs/ls1012afrdm.h
index f8cb97b..8de20e3 100644
--- a/include/configs/ls1012afrdm.h
+++ b/include/configs/ls1012afrdm.h
@@ -24,7 +24,6 @@
 #define CONFIG_EXTRA_ENV_SETTINGS		\
 	"verify=no\0"				\
 	"fdt_high=0xffffffffffffffff\0"		\
-	"initrd_high=0xffffffffffffffff\0"	\
 	"fdt_addr=0x00f00000\0"			\
 	"kernel_addr=0x01000000\0"		\
 	"scriptaddr=0x80000000\0"		\
@@ -34,6 +33,7 @@
 	"fdt_addr_r=0x90000000\0"		\
 	"load_addr=0x96000000\0"		\
 	"kernel_size=0x2800000\0"		\
+	"bootm_size=0x10000000\0"		\
 	"console=ttyS0,115200\0"		\
 	BOOTENV					\
 	"boot_scripts=ls1012afrdm_boot.scr\0"	\