Reapply "Add car audio emu support to aosp_car_* targets"

This reverts commit 52cf1a678cf3a6b232810e3f205b093784eaae93.

Bug:130232630
Test: Compile emulator and verify functionality
Change-Id: I3241eb07c89b25081cdea089884bf8b612e52522
diff --git a/aosp_car_arm.mk b/aosp_car_arm.mk
index 0db4952..9698d61 100644
--- a/aosp_car_arm.mk
+++ b/aosp_car_arm.mk
@@ -15,7 +15,7 @@
 
 PRODUCT_PACKAGE_OVERLAYS := device/generic/car/common/overlay
 
-$(call inherit-product, device/generic/car/common/car.mk)
+$(call inherit-product, device/generic/car/emulator/aosp_car_emulator.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_arm.mk)
 
 PRODUCT_NAME := aosp_car_arm
diff --git a/aosp_car_arm64.mk b/aosp_car_arm64.mk
index 1c33928..682f9b1 100644
--- a/aosp_car_arm64.mk
+++ b/aosp_car_arm64.mk
@@ -15,7 +15,7 @@
 
 PRODUCT_PACKAGE_OVERLAYS := device/generic/car/common/overlay
 
-$(call inherit-product, device/generic/car/common/car.mk)
+$(call inherit-product, device/generic/car/emulator/aosp_car_emulator.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_arm64.mk)
 
 PRODUCT_NAME := aosp_car_arm64
diff --git a/aosp_car_x86.mk b/aosp_car_x86.mk
index 7c358ec..f6138c0 100644
--- a/aosp_car_x86.mk
+++ b/aosp_car_x86.mk
@@ -15,7 +15,7 @@
 
 PRODUCT_PACKAGE_OVERLAYS := device/generic/car/common/overlay
 
-$(call inherit-product, device/generic/car/common/car.mk)
+$(call inherit-product, device/generic/car/emulator/aosp_car_emulator.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_x86.mk)
 
 PRODUCT_NAME := aosp_car_x86
diff --git a/aosp_car_x86_64.mk b/aosp_car_x86_64.mk
index 6066d87..360a349 100644
--- a/aosp_car_x86_64.mk
+++ b/aosp_car_x86_64.mk
@@ -15,7 +15,7 @@
 
 PRODUCT_PACKAGE_OVERLAYS := device/generic/car/common/overlay
 
-$(call inherit-product, device/generic/car/common/car.mk)
+$(call inherit-product, device/generic/car/emulator/aosp_car_emulator.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_x86_64.mk)
 
 PRODUCT_NAME := aosp_car_x86_64
diff --git a/car_x86_64.mk b/car_x86_64.mk
index 82b2565..3832149 100644
--- a/car_x86_64.mk
+++ b/car_x86_64.mk
@@ -15,7 +15,7 @@
 
 PRODUCT_PACKAGE_OVERLAYS := device/generic/car/common/overlay
 
-$(call inherit-product, device/generic/car/common/car.mk)
+$(call inherit-product, device/generic/car/emulator/aosp_car_emulator.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_x86_64.mk)
 $(call inherit-product, device/generic/car/emulator/audio/car_emulator_audio.mk)
 
diff --git a/emulator/aosp_car_emulator.mk b/emulator/aosp_car_emulator.mk
new file mode 100644
index 0000000..04f9031
--- /dev/null
+++ b/emulator/aosp_car_emulator.mk
@@ -0,0 +1,19 @@
+#
+# 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.
+
+$(call inherit-product, device/generic/car/common/car.mk)
+# This overrides device/generic/car/common/car.mk
+$(call inherit-product, device/generic/car/emulator/audio/car_emulator_audio.mk)
+