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/arch/arm/include/asm/fsl_secure_boot.h b/arch/arm/include/asm/fsl_secure_boot.h
index 1ca5f42..1fd09f2 100644
--- a/arch/arm/include/asm/fsl_secure_boot.h
+++ b/arch/arm/include/asm/fsl_secure_boot.h
@@ -70,7 +70,7 @@
 /* Copying Bootscript and Header to DDR from NOR for LS2 and for rest, from
  * Non-XIP Memory (Nand/SD)*/
 #if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_FSL_LSCH3) || \
-	defined(CONFIG_SD_BOOT)
+	defined(CONFIG_SD_BOOT) || defined(CONFIG_NAND_BOOT)
 #define CONFIG_BOOTSCRIPT_COPY_RAM
 #endif
 /* The address needs to be modified according to NOR, NAND, SD and
@@ -96,6 +96,11 @@
 #define CONFIG_BS_ADDR_DEVICE		0x00000940
 #define CONFIG_BS_HDR_SIZE		0x00000010
 #define CONFIG_BS_SIZE			0x00000008
+#elif defined(CONFIG_NAND_BOOT)
+#define CONFIG_BS_HDR_ADDR_DEVICE      0x00800000
+#define CONFIG_BS_ADDR_DEVICE          0x00802000
+#define CONFIG_BS_HDR_SIZE             0x00002000
+#define CONFIG_BS_SIZE                 0x00001000
 #elif defined(CONFIG_QSPI_BOOT)
 #ifdef CONFIG_ARCH_LS1046A
 #define CONFIG_BS_HDR_ADDR_DEVICE	0x40780000