ARM: multi_v7_defconfig: Add Atmel SAMA5D2 SoC

Add Atmel SAMA5D2 SoC family to multi_v7 image.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

arch/arm/configs/multi_v7_defconfig

@@ -21,6 +21,7 @@ CONFIG_MACH_ARMADA_39X=y
 CONFIG_MACH_ARMADA_XP=y
 CONFIG_MACH_DOVE=y
 CONFIG_ARCH_AT91=y
+CONFIG_SOC_SAMA5D2=y
 CONFIG_SOC_SAMA5D3=y
 CONFIG_SOC_SAMA5D4=y
 CONFIG_ARCH_BCM=y