arm64: dts: move berlin SoC files from marvell dir to synaptics dir

Move device tree files as part of transition from Marvell berlin to
Synaptics berlin.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>

arch/arm64/boot/dts/Makefile

@@ -22,5 +22,6 @@ subdir-y += renesas
 subdir-y += rockchip
 subdir-y += socionext
 subdir-y += sprd
+subdir-y += synaptics
 subdir-y += xilinx
 subdir-y += zte

arch/arm64/boot/dts/marvell/Makefile

@@ -1,8 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-# Berlin SoC Family
-dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-dmp.dtb
-dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-stb.dtb
-
 # Mvebu SoC Family
 dtb-$(CONFIG_ARCH_MVEBU) += armada-3720-db.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-3720-espressobin.dtb

arch/arm64/boot/dts/synaptics/Makefile

@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+# Berlin SoC Family
+dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-dmp.dtb
+dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-stb.dtb