VncFlinger: stop changing uinput permissions, use gid-granting permission

Change-Id: Iba56054306e43c0e113329b9dad082b69c262837

Android.bp

@@ -3,7 +3,6 @@ android_app {
     platform_apis: true,
     certificate: "platform",
     privileged: true,
-    init_rc: ["etc/vncflinger.rc"],
     srcs: ["java/**/*.java"],
     optimize: {
         proguard_flags_files: ["proguard-rules.pro"],

AndroidManifest.xml

@@ -26,6 +26,8 @@
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
     <uses-permission android:name="android.permission.CAPTURE_AUDIO_OUTPUT"
         tools:ignore="ProtectedPermissions" />
+    <uses-permission android:name="android.permission.VIRTUAL_INPUT_DEVICE"
+        tools:ignore="ProtectedPermissions" />
 
     <application
         android:supportsRtl="true"

etc/vncflinger.rc

-on boot
-    # vnc
-    chmod 0666 /dev/uinput