arm: mvebu: Add support for Synology DS116 (Armada 385)

Synology DS116 is a NAS based on Marvell Armada 385 SoC.

Board Specification:

- Marvel MV88F6820 Dual Core at 1.8GHz
- 1 GiB DDR3 RAM
- 8MB Macronix mx25l6405d SPI flash
- I2C
- 2x USB 3.0
- 1x GBE LAN port (PHY: Marvell 88E1510)
- 1x SATA (6 Gbps)
- 3x LED
- PIC16F1829 (connected to uart1)
- GPIO fan
- serial console

Note that this patch depends on the add-support for Thecus N2350 patch:
https://patchwork.ozlabs.org/project/uboot/patch/20230201231306.7010-1-mibodhi@gmail.com/

Signed-off-by: Tony Dinh <mibodhi@gmail.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index dee2982..9d647b9 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -247,6 +247,7 @@
 	armada-385-atl-x530.dtb			\
 	armada-385-atl-x530DP.dtb		\
 	armada-385-db-88f6820-amc.dtb		\
+	armada-385-synology-ds116.dtb		\
 	armada-385-thecus-n2350.dtb		\
 	armada-385-turris-omnia.dtb		\
 	armada-388-clearfog.dtb			\