wifi: support 60GHz scan

Use WifiScanner.WIFI_BAND_60_GHZ for supporting getting
60GHz channels for scanning.

Bug: 147522434
Test: Manual - enable wifi and connect to an access point
Test: atest FrameworksWifiTests
Test: atest FrameworksWifiApiTests

Change-Id: I44078b3b8dd588b271b4eab64c0d104b4092d432

wifi/java/android/net/wifi/nl80211/WifiNl80211Manager.java

@@ -1048,6 +1048,7 @@ public class WifiNl80211Manager {
      * {@link WifiScanner#WIFI_BAND_5_GHZ},
      * {@link WifiScanner#WIFI_BAND_5_GHZ_DFS_ONLY},
      * {@link WifiScanner#WIFI_BAND_6_GHZ}
+     * {@link WifiScanner.WIFI_BAND_60_GHZ}
      * @return frequencies vector of valid frequencies (MHz), or an empty array for error.
      * @throws IllegalArgumentException if band is not recognized.
      */
@@ -1071,6 +1072,9 @@ public class WifiNl80211Manager {
                 case WifiScanner.WIFI_BAND_6_GHZ:
                     result = mWificond.getAvailable6gChannels();
                     break;
+                case WifiScanner.WIFI_BAND_60_GHZ:
+                    result = mWificond.getAvailable60gChannels();
+                    break;
                 default:
                     throw new IllegalArgumentException("unsupported band " + band);
             }