ARM: dts: Make sure to add the dts files to compilation target

Add the dts files to the compilation target when compiling
for arm.

Change-Id: I3146989f6e73bfe101ac9363428bd0beecd09c32
Signed-off-by: Srinivas Ramana <sramana@codeaurora.org>
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 54f95d3..f2047c7 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -970,5 +970,9 @@
 targets += dtbs dtbs_install
 targets += $(DTB_LIST)
 
+ifeq ($(CONFIG_ARM64),y)
 always		:= $(DTB_LIST)
+else
+dtbs: $(addprefix $(obj)/, $(DTB_LIST))
+endif
 clean-files	:= *.dtb