armv8: ls1088ardb: Add TFABOOT support

TFABOOT support includes:
- ls1088ardb_tfa_defconfig to be loaded by trusted firmware
- environment address and size changes for TFABOOT
- MC address changes for TFABOOT
- define BOOTCOMMAND for TFABOOT
- ifc chip select changes for TFABOOT

Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Signed-off-by: Pankit Garg <pankit.garg@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/board/freescale/ls1088a/ddr.c b/board/freescale/ls1088a/ddr.c
index 78d573a..c21a2ce 100644
--- a/board/freescale/ls1088a/ddr.c
+++ b/board/freescale/ls1088a/ddr.c
@@ -111,7 +111,17 @@
 			  DDR_CDR2_VREF_TRAIN_EN | DDR_CDR2_VREF_RANGE_2;
 }
 
+#ifdef CONFIG_TFABOOT
+int fsl_initdram(void)
+{
+	gd->ram_size = tfa_get_dram_size();
 
+	if (!gd->ram_size)
+		gd->ram_size = fsl_ddr_sdram_size();
+
+	return 0;
+}
+#else
 int fsl_initdram(void)
 {
 	puts("Initializing DDR....using SPD\n");
@@ -123,3 +133,4 @@
 #endif
 	return 0;
 }
+#endif /* CONFIG_TFABOOT */