Add TW_USE_MODEL_HADWARE_ID_FOR_DEVICE_ID parameter for correct model identification

Change-Id: Ic6440c624b5cfbdb0f24681461748a0da16bf95e
diff --git a/Android.mk b/Android.mk
index 7582bb1..1ad1e0d 100644
--- a/Android.mk
+++ b/Android.mk
@@ -222,9 +222,11 @@
     LOCAL_SRC_FILES += crypto/jb/cryptfs.c
     LOCAL_C_INCLUDES += system/extras/ext4_utils external/openssl/include
 endif
-
+ifeq ($(TW_USE_MODEL_HARDWARE_ID_FOR_DEVICE_ID), true)
+    LOCAL_CFLAGS += -DTW_USE_MODEL_HARDWARE_ID_FOR_DEVICE_ID
+endif
 ifeq ($(TARGET_BOARD_PLATFORM),rk30xx)
-LOCAL_CFLAGS += -DRK3066
+    LOCAL_CFLAGS += -DRK3066
 endif
 
 include $(BUILD_EXECUTABLE)