Revert "Move Car Service to its own security domain"

This reverts commit 3e1ad75f59272efad0a46d8a456a3ce1987c8564.

Reason for revert: broken build

Change-Id: Ifa6c93df6064820cea104a3400310cbe048b7344
diff --git a/common/car.mk b/common/car.mk
index 51f6ca5..72df605 100644
--- a/common/car.mk
+++ b/common/car.mk
@@ -51,4 +51,8 @@
 
 TARGET_USES_CAR_FUTURE_FEATURES := true
 
+# Add car related sepolicy.
+BOARD_SEPOLICY_DIRS += \
+    device/generic/car/common/sepolicy \
+
 $(call inherit-product, packages/services/Car/car_product/build/car.mk)
diff --git a/common/sepolicy/system_app.te b/common/sepolicy/system_app.te
new file mode 100644
index 0000000..9bc5ba3
--- /dev/null
+++ b/common/sepolicy/system_app.te
@@ -0,0 +1,3 @@
+allow system_app hal_audiocontrol_hwservice:hwservice_manager find;
+allow system_app hal_vehicle_hwservice:hwservice_manager find;
+