ARM: i.MX6: dts: Build dtb based on SOC type

Build dtb's based on SOC type instead building arch type.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

arch/arm/dts/Makefile

@@ -400,9 +400,7 @@ dtb-$(CONFIG_VF610) += vf500-colibri.dtb \
 
 dtb-$(CONFIG_MX53) += imx53-cx9020.dtb
 
-dtb-$(CONFIG_MX6) += imx6ull-14x14-evk.dtb \
-	imx6sl-evk.dtb \
-	imx6sll-evk.dtb \
+dtb-$(CONFIG_MX6QDL) += \
 	imx6dl-icore.dtb \
 	imx6dl-icore-mipi.dtb \
 	imx6dl-icore-rqs.dtb \
@@ -410,14 +408,24 @@ dtb-$(CONFIG_MX6) += imx6ull-14x14-evk.dtb \
 	imx6q-icore.dtb \
 	imx6q-icore-mipi.dtb \
 	imx6q-icore-rqs.dtb \
-	imx6q-logicpd.dtb \
+	imx6q-logicpd.dtb
+
+dtb-$(CONFIG_MX6SL) += imx6sl-evk.dtb
+
+dtb-$(CONFIG_MX6SL) += imx6sll-evk.dtb
+
+dtb-$(CONFIG_MX6SX) += \
 	imx6sx-sabreauto.dtb \
-	imx6sx-sdb.dtb \
+	imx6sx-sdb.dtb
+
+dtb-$(CONFIG_MX6UL) += \
 	imx6ul-geam-kit.dtb \
 	imx6ul-isiot-emmc.dtb \
 	imx6ul-isiot-nand.dtb \
 	imx6ul-opos6uldev.dtb
 
+dtb-$(CONFIG_MX6ULL) += imx6ull-14x14-evk.dtb
+
 dtb-$(CONFIG_MX7) += imx7-colibri.dtb \
 	imx7d-sdb.dtb