Move performanced into system_ext

it is not a part of the system according to
generic_system.mk.

Bug: 173538619
Bug: 167689596
Test: presubmit
Signed-off-by: Roman Kiryanov <rkir@google.com>
Change-Id: I0818b1e08ccfb4906e128b18fd48f3b2efbb03f7
diff --git a/services/vr/performanced/Android.bp b/services/vr/performanced/Android.bp
index 20301f6..0ef8cc4 100644
--- a/services/vr/performanced/Android.bp
+++ b/services/vr/performanced/Android.bp
@@ -30,6 +30,7 @@
 
 cc_binary {
     name: "performanced",
+    system_ext_specific: true,
     defaults: ["performanced_defaults"],
     srcs: [
         "cpu_set.cpp",