arm: ls1043ardb: Add NAND secure boot target

Add NAND secure boot target for ls1043ardb.

- Change the u-boot size defined by a macro for copying the main
  U-Boot by SPL to also include the u-boot Secure Boot header size as
  header is appended to u-boot image. So header will also be copied
  from SD to DDR.
- MACRO for CONFIG_BOOTSCRIPT_COPY_RAM is enabled to copy Bootscript
  from NAND to DDR. Offsets for Bootscript on NAND and DDR have been
  also defined.

Signed-off-by: Vinitha Pillai <vinitha.pillai@nxp.com>
Signed-off-by: Sumit Garg <sumit.garg@nxp.com>
Signed-off-by: Ruchika Gupta <ruchika.gupta@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/include/config_fsl_chain_trust.h b/include/config_fsl_chain_trust.h
index eb45e98..40d323e 100644
--- a/include/config_fsl_chain_trust.h
+++ b/include/config_fsl_chain_trust.h
@@ -81,17 +81,18 @@
 	"setenv bs_size " __stringify(CONFIG_BS_SIZE)";"
 
 /* For secure boot flow, default environment used will be used */
-#if defined(CONFIG_SYS_RAMBOOT)
-#if defined(CONFIG_RAMBOOT_NAND)
+#if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_NAND_BOOT) || \
+	defined(CONFIG_SD_BOOT)
+#if defined(CONFIG_RAMBOOT_NAND) || defined(CONFIG_NAND_BOOT)
 #define CONFIG_BS_COPY_CMD \
 	"nand read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \
 	"nand read $bs_ram $bs_device $bs_size ;"
-#endif /* CONFIG_RAMBOOT_NAND */
 #elif defined(CONFIG_SD_BOOT)
 #define CONFIG_BS_COPY_CMD \
 	"mmc read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \
 	"mmc read $bs_ram $bs_device $bs_size ;"
-#else /* CONFIG_SD_BOOT */
+#endif
+#else
 #define CONFIG_BS_COPY_CMD \
 	"cp.b $bs_hdr_device $bs_hdr_ram  $bs_hdr_size ;" \
 	"cp.b $bs_device $bs_ram  $bs_size ;"