Add networks and requests to CS.dump

Adds debugging.

Change-Id: I352dfe970c990fd210f3d1598519e321bbdd6ed5
(cherry picked from commit 9bdf6bd99db56c652ba9a62d91f258d11d19ca9f)
diff --git a/core/java/android/net/NetworkCapabilities.java b/core/java/android/net/NetworkCapabilities.java
index b783046..8005e5c 100644
--- a/core/java/android/net/NetworkCapabilities.java
+++ b/core/java/android/net/NetworkCapabilities.java
@@ -323,6 +323,6 @@
         String dnBand = ((mLinkDownBandwidthKbps > 0) ? " LinkDnBandwidth>=" +
                 mLinkDownBandwidthKbps + "Kbps" : "");
 
-        return "NetworkCapabilities: [" + transports + capabilities + upBand + dnBand + "]";
+        return "[" + transports + capabilities + upBand + dnBand + "]";
     }
 }