libmeminfo: force root for vts_core_meminfo_test

vts requires root to access ion sysfs interfaces

Bug: 138148041
Bug: 156706538
Test: vts-tradefed run vts -m vts_core_meminfo_test
Change-Id: I33947d998792c8473247e642b92793469600e00f
Merged-In: I33947d998792c8473247e642b92793469600e00f
diff --git a/vts/Android.bp b/vts/Android.bp
index 3fac2a2..a193caf 100644
--- a/vts/Android.bp
+++ b/vts/Android.bp
@@ -28,6 +28,7 @@
     name: "vts_core_meminfo_test",
     defaults: ["vts_meminfo_defaults"],
     test_suites: ["vts"],
+    require_root: true,
     auto_gen_config: true,
     test_min_api_level: 29,
 }