Increase scan time in settings

With the combo scan on all bands taking about 5-6s,
increase scan time in settings to 10s.

Change-Id: Ie98605a211dcb149b3bbd2c723bc10352e207cc3
diff --git a/src/com/android/settings/wifi/WifiSettings.java b/src/com/android/settings/wifi/WifiSettings.java
index 45bc9da..e8a894d 100644
--- a/src/com/android/settings/wifi/WifiSettings.java
+++ b/src/com/android/settings/wifi/WifiSettings.java
@@ -517,7 +517,8 @@
                 return;
             }
             mAccessPoints.setProgress(mRetry != 0);
-            sendEmptyMessageDelayed(0, 6000);
+            // Combo scans can take 5-6s to complete. Increase interval to 10s.
+            sendEmptyMessageDelayed(0, 10000);
         }
     }
 }