plat: renesas: Move headers and assembly files to common folder

Create a common directory and move the header and assembly files
so that the common code can be used by both Renesas R-Car Gen3 and
RZ/G2 platforms.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: Ia9a563a1c3c9f8c6f0d3cb82622deb2e155d7f6c
diff --git a/plat/renesas/common/common.mk b/plat/renesas/common/common.mk
new file mode 100644
index 0000000..f2e1112
--- /dev/null
+++ b/plat/renesas/common/common.mk
@@ -0,0 +1,86 @@
+#
+# Copyright (c) 2018-2020, Renesas Electronics Corporation. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+PROGRAMMABLE_RESET_ADDRESS	:= 0
+COLD_BOOT_SINGLE_CPU		:= 1
+ARM_CCI_PRODUCT_ID		:= 500
+TRUSTED_BOARD_BOOT		:= 1
+RESET_TO_BL31			:= 1
+GENERATE_COT			:= 1
+BL2_AT_EL3			:= 1
+ENABLE_SVE_FOR_NS		:= 0
+MULTI_CONSOLE_API		:= 1
+
+CRASH_REPORTING			:= 1
+HANDLE_EA_EL3_FIRST		:= 1
+
+$(eval $(call add_define,PLAT_EXTRA_LD_SCRIPT))
+
+ifeq (${SPD},none)
+  SPD_NONE:=1
+  $(eval $(call add_define,SPD_NONE))
+endif
+
+# LSI setting common define
+RCAR_H3:=0
+RCAR_M3:=1
+RCAR_M3N:=2
+RCAR_E3:=3
+RCAR_H3N:=4
+RCAR_D3:=5
+RCAR_V3M:=6
+RCAR_AUTO:=99
+$(eval $(call add_define,RCAR_H3))
+$(eval $(call add_define,RCAR_M3))
+$(eval $(call add_define,RCAR_M3N))
+$(eval $(call add_define,RCAR_E3))
+$(eval $(call add_define,RCAR_H3N))
+$(eval $(call add_define,RCAR_D3))
+$(eval $(call add_define,RCAR_V3M))
+$(eval $(call add_define,RCAR_AUTO))
+RCAR_CUT_10:=0
+RCAR_CUT_11:=1
+RCAR_CUT_13:=3
+RCAR_CUT_20:=10
+RCAR_CUT_30:=20
+$(eval $(call add_define,RCAR_CUT_10))
+$(eval $(call add_define,RCAR_CUT_11))
+$(eval $(call add_define,RCAR_CUT_13))
+$(eval $(call add_define,RCAR_CUT_20))
+$(eval $(call add_define,RCAR_CUT_30))
+
+# Enable workarounds for selected Cortex-A53 erratas.
+ERRATA_A53_835769  := 1
+ERRATA_A53_843419  := 1
+ERRATA_A53_855873  := 1
+
+# Enable workarounds for selected Cortex-A57 erratas.
+ERRATA_A57_859972  := 1
+ERRATA_A57_813419  := 1
+
+PLAT_INCLUDES	:=	-Iplat/renesas/common/include/registers	\
+			-Iplat/renesas/common/include		\
+			-Iplat/renesas/common
+
+RCAR_GIC_SOURCES	:=	drivers/arm/gic/common/gic_common.c	\
+				drivers/arm/gic/v2/gicv2_main.c		\
+				drivers/arm/gic/v2/gicv2_helpers.c	\
+				plat/common/plat_gicv2.c
+
+BL2_SOURCES	+=	${RCAR_GIC_SOURCES}				\
+			lib/cpus/aarch64/cortex_a53.S			\
+			lib/cpus/aarch64/cortex_a57.S			\
+			${LIBFDT_SRCS}					\
+			common/desc_image_load.c			\
+			drivers/renesas/common/common.c			\
+			drivers/io/io_storage.c
+
+BL31_SOURCES	+=	${RCAR_GIC_SOURCES}				\
+			lib/cpus/aarch64/cortex_a53.S			\
+			lib/cpus/aarch64/cortex_a57.S			\
+			plat/common/plat_psci_common.c			\
+			drivers/renesas/common/common.c			\
+			drivers/arm/cci/cci.c