Revert "Revert "Add SupplementalProcess stubs and bootclasspath ..."

Revert "Revert "Add framework-supplementalprocess to PRODUCT_APE..."

Revert^2 "Add framework-supplementalprocess prebuilts"

e0c2a4dea0d0e27abad0cd3e4d440ab8f82752e4

Change-Id: I98366465906bb6b78ecf75a9a2319f64feb25beb
diff --git a/boot/Android.bp b/boot/Android.bp
index d88e839..3273f2c 100644
--- a/boot/Android.bp
+++ b/boot/Android.bp
@@ -96,6 +96,10 @@
             module: "com.android.sdkext-bootclasspath-fragment",
         },
         {
+            apex: "com.android.supplementalprocess",
+            module: "com.android.supplementalprocess-bootclasspath-fragment",
+        },
+        {
             apex: "com.android.tethering",
             module: "com.android.tethering-bootclasspath-fragment",
         },