Move configureRpcThreadpool into sources.

Bug: 35710429
Test: hidl_test
Change-Id: Ice4de080155a5b05878fec3045b495b447fff6ac
diff --git a/transport/Android.bp b/transport/Android.bp
index b1df04e..1c1a310 100644
--- a/transport/Android.bp
+++ b/transport/Android.bp
@@ -58,6 +58,7 @@
     srcs: [
         "HidlBinderSupport.cpp",
         "HidlPassthroughSupport.cpp",
+        "HidlTransportSupport.cpp",
         "LegacySupport.cpp",
         "ServiceManagement.cpp",
         "Static.cpp"