Add the Android Runtime APEX module to PRODUCT_PACKAGES.

Test: make systemimage
Bug: 113373927
Change-Id: I49c01fd40b2b777128586161e4c6ece6c5aea293
diff --git a/target/product/runtime_libart.mk b/target/product/runtime_libart.mk
index bda4524..bf2524c 100644
--- a/target/product/runtime_libart.mk
+++ b/target/product/runtime_libart.mk
@@ -51,6 +51,8 @@
 PRODUCT_PACKAGES += art-runtime
 # ART/dex helpers.
 PRODUCT_PACKAGES += art-tools
+# Android Runtime APEX module.
+PRODUCT_PACKAGES += com.android.runtime
 
 # Certificates.
 PRODUCT_PACKAGES += \