plat: marvell: armada: Add new target mrvl_bootimage

This new target builds boot-image.bin binary as described in documentation.
This image does not contain WTMI image and therefore WTP repository is not
required for building.

Having ability to build just this boot-image.bin binary without full
flash-image.bin is useful for A3720 Turris MOX board which does not use
Marvell's WTP and a3700_utils.

To reduce duplicity between a8k and a3k code, define this new target and
also definitions for $(BUILD_PLAT)/$(BOOT_IMAGE) in common include file
marvell_common.mk.

For this purpose it is needed to include plat/marvell/marvell.mk file from
a3700_common.mk unconditionally (and not only when WTP is defined). Now
when common file plat/marvell/marvell.mk does not contain definition for
building $(DOIMAGETOOL), it is possible to move its inclusion at the top of
the a3700_common.mk file.

Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: Ic58303b37a1601be9a06ff83b7a279cb7cfc8280
diff --git a/plat/marvell/armada/a3k/common/a3700_common.mk b/plat/marvell/armada/a3k/common/a3700_common.mk
index 001443c..5e2f8e2 100644
--- a/plat/marvell/armada/a3k/common/a3700_common.mk
+++ b/plat/marvell/armada/a3k/common/a3700_common.mk
@@ -15,6 +15,8 @@
 MARVELL_COMMON_BASE		:= $(MARVELL_PLAT_BASE)/common
 HANDLE_EA_EL3_FIRST		:= 1
 
+include plat/marvell/marvell.mk
+
 #*********** A3700 *************
 
 # GICV3
@@ -67,8 +69,6 @@
 DOIMAGEPATH	:= $(WTP)
 DOIMAGETOOL	:= $(DOIMAGEPATH)/wtptp/src/TBB_Linux/release/TBB_linux
 
-include plat/marvell/marvell.mk
-
 ifeq ($(MARVELL_SECURE_BOOT),1)
 DOIMAGE_CFG	:= $(DOIMAGEPATH)/atf-tim.txt
 IMAGESPATH	:= $(DOIMAGEPATH)/tim/trusted
@@ -125,10 +125,7 @@
 	$(Q)$(MAKE) --no-print-directory -C $(CRYPTOPP_PATH) -f GNUmakefile
 	$(Q)$(MAKE) --no-print-directory -C $(DOIMAGEPATH)/wtptp/src/TBB_Linux -f TBB_linux.mak LIBDIR=$(CRYPTOPP_PATH)
 
-mrvl_flash: ${BUILD_PLAT}/${FIP_NAME} ${DOIMAGETOOL}
-	$(shell truncate -s %128K ${BUILD_PLAT}/bl1.bin)
-	$(shell cat ${BUILD_PLAT}/bl1.bin ${BUILD_PLAT}/${FIP_NAME} > ${BUILD_PLAT}/${BOOT_IMAGE})
-	$(shell truncate -s %4 ${BUILD_PLAT}/${BOOT_IMAGE})
+mrvl_flash: ${BUILD_PLAT}/${BOOT_IMAGE} ${DOIMAGETOOL}
 	$(if $(value MV_DDR_PATH),,$(error "Platform '${PLAT}' for target '$@' requires MV_DDR_PATH. Please set MV_DDR_PATH to point to the right directory"))
 	${Q}${MAKE} --no-print-directory -C ${DOIMAGEPATH} WTMI_IMG=$(WTMI_IMG) MV_DDR_PATH=$(MV_DDR_PATH)
 	$(shell truncate -s %4 $(WTMI_IMG))