tegra: Migrate to new interfaces

- Migrate to bl31_early_platform_setup2().
- Remove references to removed build options.
- Replace zeromem16() by zeromem().
- Use private definition of bl31_params_t.

This is an incomplete migration, the platform doesn't currently compile.

Change-Id: I67fbf2206678be80c3a16692024221a131cec42f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/plat/nvidia/tegra/common/tegra_common.mk b/plat/nvidia/tegra/common/tegra_common.mk
index 8f6c7b8..abb9bb8 100644
--- a/plat/nvidia/tegra/common/tegra_common.mk
+++ b/plat/nvidia/tegra/common/tegra_common.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -13,8 +13,7 @@
 
 COMMON_DIR		:=	plat/nvidia/tegra/common
 
-BL31_SOURCES		+=	drivers/arm/gic/gic_v2.c			\
-				drivers/console/aarch64/console.S		\
+BL31_SOURCES		+= 	drivers/console/aarch64/console.S		\
 				drivers/delay_timer/delay_timer.c		\
 				drivers/ti/uart/aarch64/16550_console.S		\
 				${COMMON_DIR}/aarch64/tegra_helpers.S		\