ARM: dts: dove: Remove Compulab CM-A510 from Makefile

Prior reworking Dove based Compulab CM-A510 device tree, remove it
from the compiled device tree files.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm/boot/dts/Makefile

@@ -649,7 +649,6 @@ dtb-$(CONFIG_MACH_ARMADA_XP) += \
 	armada-xp-openblocks-ax3-4.dtb \
 	armada-xp-synology-ds414.dtb
 dtb-$(CONFIG_MACH_DOVE) += \
-	dove-cm-a510.dtb \
 	dove-cubox.dtb \
 	dove-cubox-es.dtb \
 	dove-d2plug.dtb \