Fix libbinder_sdk build warnings

-Wdeprecated-declarations
-Wformat
-Wpessimizing-move
-Wsign-compare
-Wsubobject-linkage
-Wunused-result
-Wzero-as-null-pointer-constant (turned on in ag/4503295)

Bug: 285204695
Test: m libbinder_sdk
Change-Id: Id4a482c511244968e450fdeecf6b9de41bc65b04
diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index 6800a8d..bd24a20 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp
@@ -28,6 +28,11 @@
     cflags: [
         "-Wall",
         "-Werror",
+        "-Wformat",
+        "-Wpessimizing-move",
+        "-Wsign-compare",
+        "-Wunused-result",
+        "-Wzero-as-null-pointer-constant",
     ],
 }