armv8: mmu: Add support of non-identical mapping

Introduce virtual and physical addresses in the mapping table. This change
have no impact on existing boards because they all use idential mapping.

Signed-off-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/cpu/armv8/s32v234/cpu.c b/arch/arm/cpu/armv8/s32v234/cpu.c
index dac12a2..5c97e0e 100644
--- a/arch/arm/cpu/armv8/s32v234/cpu.c
+++ b/arch/arm/cpu/armv8/s32v234/cpu.c
@@ -32,24 +32,28 @@
 
 static struct mm_region s32v234_mem_map[] = {
 	{
-		.base = S32V234_IRAM_BASE,
+		.virt = S32V234_IRAM_BASE,
+		.phys = S32V234_IRAM_BASE,
 		.size = S32V234_IRAM_SIZE,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
 			 PTE_BLOCK_OUTER_SHARE
 	}, {
-		.base = S32V234_DRAM_BASE1,
+		.virt = S32V234_DRAM_BASE1,
+		.phys = S32V234_DRAM_BASE1,
 		.size = S32V234_DRAM_SIZE1,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
 			 PTE_BLOCK_OUTER_SHARE
 	}, {
-		.base = S32V234_PERIPH_BASE,
+		.virt = S32V234_PERIPH_BASE,
+		.phys = S32V234_PERIPH_BASE,
 		.size = S32V234_PERIPH_SIZE,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
 			 PTE_BLOCK_NON_SHARE
 			 /* TODO: Do we need these? */
 			 /* | PTE_BLOCK_PXN | PTE_BLOCK_UXN */
 	}, {
-		.base = S32V234_DRAM_BASE2,
+		.virt = S32V234_DRAM_BASE2,
+		.phys = S32V234_DRAM_BASE2,
 		.size = S32V234_DRAM_SIZE2,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL_NC) |
 			 PTE_BLOCK_OUTER_SHARE