plat/arm: Migrate to new interfaces

- Remove references to removed build options.
- Remove support for legacy GIC driver.
- Remove support for LOAD_IMAGE_V2=0.

Change-Id: I72f8c05620bdf4a682765e6e53e2c04ca749a3d5
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index fd93b99..4cd6a24 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -69,19 +69,6 @@
 				plat/arm/common/arm_gicv2.c
 
 FVP_DT_PREFIX		:=	fvp-base-gicv2-psci
-
-else ifeq (${FVP_USE_GIC_DRIVER}, FVP_GICV3_LEGACY)
-  ifeq (${ARCH}, aarch32)
-    $(error "GICV3 Legacy driver not supported for AArch32 build")
-  endif
-FVP_GIC_SOURCES		:=	drivers/arm/gic/arm_gic.c		\
-				drivers/arm/gic/gic_v2.c		\
-				drivers/arm/gic/gic_v3.c		\
-				plat/common/plat_gic.c			\
-				plat/arm/common/arm_gicv3_legacy.c
-
-FVP_DT_PREFIX		:=	fvp-base-gicv2-psci
-
 else
 $(error "Incorrect GIC driver chosen on FVP port")
 endif
@@ -208,9 +195,6 @@
 $(eval $(call TOOL_ADD_PAYLOAD,${FVP_HW_CONFIG},--hw-config))
 endif
 
-# Disable the PSCI platform compatibility layer
-ENABLE_PLAT_COMPAT	:= 	0
-
 # Enable Activity Monitor Unit extensions by default
 ENABLE_AMU			:=	1
 
@@ -247,9 +231,7 @@
 include plat/arm/common/arm_common.mk
 
 # FVP being a development platform, enable capability to disable Authentication
-# dynamically if TRUSTED_BOARD_BOOT and LOAD_IMAGE_V2 is set.
+# dynamically if TRUSTED_BOARD_BOOT is set.
 ifeq (${TRUSTED_BOARD_BOOT}, 1)
-    ifeq (${LOAD_IMAGE_V2}, 1)
         DYN_DISABLE_AUTH	:=	1
-    endif
 endif