Base CF phone products on mainline makefiles

GSI related products have been changed to use mainline makefiles. This CL
change CF phone products (for x86, x86_64, and arm64) to base on mainline
makefiles, too, so their system images can be (almost) the same as GSI.

Bug: 112341596
Test: Built the following 3 products successfully:
        aosp_cf_x86_phone-userdebug
        aosp_cf_x86_64_phone-userdebug
        aosp_cf_arm64_phone-userdebug
      The first can boot and browse the web successfully.
      The second can boot to home screen successfully.

Change-Id: Ie0a841c4e0187412e2f8a549ef33b58133d44aa9
(cherry picked from commit c90d5deb0cfa111c95949bd71050b4b9ddb48df4)
diff --git a/vsoc_arm64/phone/aosp_cf.mk b/vsoc_arm64/phone/aosp_cf.mk
new file mode 100644
index 0000000..af76064
--- /dev/null
+++ b/vsoc_arm64/phone/aosp_cf.mk
@@ -0,0 +1,49 @@
+#
+# Copyright (C) 2019 The Android Open Source 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.
+#
+
+#
+# All components inherited here go to system image (same as GSI system)
+#
+$(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit.mk)
+
+PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST += \
+    root/init.zygote64_32.rc \
+
+$(call inherit-product, $(SRC_TARGET_DIR)/product/mainline_system.mk)
+
+PRODUCT_ENFORCE_ARTIFACT_PATH_REQUIREMENTS := relaxed
+
+# TODO(ycchen): The component below will be in Q mainline, and will be removed
+# from the whitelist when Q is released. See b/131162245 for some details.
+PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST += \
+    system/apex/com.android.apex.cts.shim.apex \
+
+#
+# All components inherited here go to product image (same as GSI product)
+#
+$(call inherit-product, device/google/cuttlefish/shared/phone/aosp_product.mk)
+
+#
+# All components inherited here go to vendor image
+#
+$(call inherit-product, device/google/cuttlefish/shared/phone/device_vendor.mk)
+
+DEVICE_PACKAGE_OVERLAYS += device/google/cuttlefish/vsoc_arm64/phone/overlay
+
+
+PRODUCT_NAME := aosp_cf_arm64_phone
+PRODUCT_DEVICE := vsoc_arm64
+PRODUCT_MODEL := Cuttlefish arm64 phone