Added missing audio libraries to car emulator

Added audio effects, audio service, and default submix libraries. Due to
a recent change in golfish the libraries were removed from car emulator
targets.

Bug: 161753755
Bug: 161846952
Test: make -j60,run emulator and play MZ audio.
Change-Id: I3ee44d739230bc0249d40acfdd784da9c23e0a38
(cherry picked from commit dcb9c6cc213cc7884a05047e309bd50ac6a341a8)
diff --git a/emulator/audio/car_emulator_audio.mk b/emulator/audio/car_emulator_audio.mk
index 6e29916..da5c60a 100644
--- a/emulator/audio/car_emulator_audio.mk
+++ b/emulator/audio/car_emulator_audio.mk
@@ -13,6 +13,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+PRODUCT_PACKAGES += \
+    audio.r_submix.default \
+    android.hardware.audio.service \
+    android.hardware.audio.effect@6.0-impl:32
+
 PRODUCT_PACKAGES += audio.primary.caremu
 PRODUCT_PACKAGES += \
     android.hardware.audio@6.0-impl:32