libhwbinder tests: require_root

Bug: N/A
Test: atest libhwbinder_benchmark libbinder_benchmark hwbinderThroughputTest libhwbinder_latency
    (although, atest doesn't parse the output correctly)
Change-Id: Ie821bf46ad54cec885823a16beea02fc8b70445e
diff --git a/vts/performance/Android.bp b/vts/performance/Android.bp
index 5c0c370..6c844f5 100644
--- a/vts/performance/Android.bp
+++ b/vts/performance/Android.bp
@@ -45,6 +45,8 @@
     whole_static_libs: [
         "android.hardware.tests.libhwbinder@1.0-impl.test",
     ],
+
+    require_root: true,
 }
 
 cc_benchmark {
@@ -69,6 +71,7 @@
     static_libs: [
         "android.hardware.tests.libbinder",
     ],
+    require_root: true,
 }
 
 // build for throughput benchmark test for hwbinder.