board: ls2085aqds: Update kernel_size env variable

kernel_size env variable is defined as 0x28000000, it is beyond NOR
flash range. Update kernel_size with 40MB kernel size.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/include/configs/ls2080aqds.h b/include/configs/ls2080aqds.h
index ba84248..a402c06 100644
--- a/include/configs/ls2080aqds.h
+++ b/include/configs/ls2080aqds.h
@@ -346,7 +346,7 @@
 	"initrd_high=0xffffffffffffffff\0"	\
 	"kernel_start=0x581100000\0"		\
 	"kernel_load=0xa0000000\0"		\
-	"kernel_size=0x28000000\0"
+	"kernel_size=0x2800000\0"
 
 #ifdef CONFIG_FSL_MC_ENET
 #define CONFIG_FSL_MEMAC