samsung: use soc_vendor_model scheme for DTS file name

This patch changes the samsung target to calculate the DTS file name
from vendor and device name and the SOC (i.e. subtarget) following
the common scheme:

soc_vendor_model.dts

This also updates the device definition name to make compatible,
image name, menuconfig name and DTS name consistent.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/samsung/image/Makefile

@@ -13,14 +13,15 @@ define Device/Default
   PROFILES = Default
   KERNEL_NAME := zImage
   KERNEL := kernel-bin | append-dtb | uImage none
+  DEVICE_DTS_DIR := ../dts
+  DEVICE_DTS = $$(SOC)_$(1)
 endef
 
-define Device/tq210
-  DEVICE_VENDOR := Samsung
+define Device/embedsky_tq210
+  DEVICE_VENDOR := EmbedSky
   DEVICE_MODEL := TQ210
-  DEVICE_DTS_DIR := ../dts
-  DEVICE_DTS := TQ210
+  SOC := s5pv210
 endef
-TARGET_DEVICES += tq210
+TARGET_DEVICES += embedsky_tq210
 
 $(eval $(call BuildImage))