Add IBinder::setRpcClient

This function allows a certain service to handle RPC
calls from a given socket fd, with a given thread pool
size.

Test: binderRpcTest
Test: binderLibTest
Bug: 182914638
Change-Id: Idee3eb004af15d57a701800a103f6f0c337e49f5
diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index f157aa2..6e7f74f 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp
@@ -167,6 +167,10 @@
         binder32bit: {
             cflags: ["-DBINDER_IPC_32BIT=1"],
         },
+
+        debuggable: {
+            cflags: ["-DBINDER_RPC_DEV_SERVERS"],
+        },
     },
 
     shared_libs: [