Allow capture by root for command-line native testing

Change-Id: I3cafd70b7770c7e4b578d39a8d570572829f2c59
diff --git a/services/audioflinger/ServiceUtilities.cpp b/services/audioflinger/ServiceUtilities.cpp
index 33bd416..8c449a0 100644
--- a/services/audioflinger/ServiceUtilities.cpp
+++ b/services/audioflinger/ServiceUtilities.cpp
@@ -53,6 +53,10 @@
     }
 
     const uid_t uid = IPCThreadState::self()->getCallingUid();
+
+    // To permit command-line native tests
+    if (uid == AID_ROOT) return true;
+
     String16 checkedOpPackageName = opPackageName;
 
     // In some cases the calling code has no access to the package it runs under.