Add com.android.cronet APEX and org.chromium.net.cronet to base_system.

com.android.cronet will be shipped as a mainline
module in APEX format.

org.chromium.net.cronet is a java_sdk_library used to provide
Cronet API to apps.

Bug: 139397529
Test: Built and installed apex on device
Change-Id: Icff7ded02e360f2df9dfe3ac7185cf7f0034d014
diff --git a/target/product/base_system.mk b/target/product/base_system.mk
index eaf48e7..8490135 100644
--- a/target/product/base_system.mk
+++ b/target/product/base_system.mk
@@ -50,6 +50,7 @@
     com.android.adbd \
     com.android.apex.cts.shim.v1_prebuilt \
     com.android.conscrypt \
+    com.android.cronet \
     com.android.i18n \
     com.android.ipsec \
     com.android.location.provider \