armv8: fsl-layerscape: Fix early MMU table for nand boot

The early MMU table doesn't enable all addresses. Unused addresses
are marked as invalid, as introduced by commit 9979922. An entry
was missing for NAND flash space, causing nand boot failure.

Signed-off-by: York Sun <yorksun@freescale.com>
CC: Alison Wang <alison.wang@freescale.com>
CC: Prabhakar Kushwaha <prabhakar@freescale.com>

arch/arm/include/asm/arch-fsl-layerscape/cpu.h

@@ -130,6 +130,10 @@ static const struct sys_mmu_table early_mmu_table[] = {
 	  CONFIG_SYS_FSL_IFC_SIZE1, MT_DEVICE_NGNRNE, PMD_SECT_NON_SHARE },
 	{ CONFIG_SYS_FSL_DRAM_BASE1, CONFIG_SYS_FSL_DRAM_BASE1,
 	  CONFIG_SYS_FSL_DRAM_SIZE1, MT_NORMAL, PMD_SECT_OUTER_SHARE },
+	/* Map IFC region #2 up to CONFIG_SYS_FLASH_BASE for NAND boot */
+	{ CONFIG_SYS_FSL_IFC_BASE2, CONFIG_SYS_FSL_IFC_BASE2,
+	  CONFIG_SYS_FLASH_BASE - CONFIG_SYS_FSL_IFC_BASE2,
+	  MT_DEVICE_NGNRNE, PMD_SECT_NON_SHARE },
 	{ CONFIG_SYS_FSL_DCSR_BASE, CONFIG_SYS_FSL_DCSR_BASE,
 	  CONFIG_SYS_FSL_DCSR_SIZE, MT_DEVICE_NGNRNE,
 	  PMD_SECT_NON_SHARE | PMD_SECT_PXN | PMD_SECT_UXN },