gta4xl: clean up this mess

Change-Id: Ie0df587a13048373d9ff819899c82822a78c2396
diff --git a/device.mk b/device.mk
index 1a72844..9839c28 100644
--- a/device.mk
+++ b/device.mk
@@ -1,15 +1,32 @@
-### PLATFORM
-$(call inherit-product, device/samsung/gta4xl-common/platform.mk)
-### PROPRIETARY VENDOR FILES
+#
+# Copyright (C) 2020-2021 The LineageOS Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Inherit from the common tree
+$(call inherit-product, device/samsung/gta4xl-common/common.mk)
+
+# Inherit proprietary files
 $(call inherit-product, vendor/samsung/gta4xl/gta4xl-vendor.mk)
 
-### DALVIK
+# Setup dalvik vm configs
 $(call inherit-product, frameworks/native/build/phone-xhdpi-4096-dalvik-heap.mk)
 
-DEVICE_PATH := device/samsung/gta4xl
+# init
+PRODUCT_COPY_FILES += \
+    $(LOCAL_PATH)/configs/init/init.vendor.rilchip.rc:$(TARGET_COPY_OUT_VENDOR)/etc/init/init.vendor.rilchip.rc \
+    $(LOCAL_PATH)/configs/init/init.vendor.rilcommon.rc:$(TARGET_COPY_OUT_VENDOR)/etc/init/init.vendor.rilcommon.rc
 
-DEVICE_PACKAGE_OVERLAYS += \
-    $(DEVICE_PATH)/overlay \
-    $(DEVICE_PATH)/overlay-lineage
-
-include $(DEVICE_PATH)/device/*.mk
+# Overlays
+DEVICE_PACKAGE_OVERLAYS += $(LOCAL_PATH)/overlay