Fix a couple of NPEs in AdbDebuggingManager.AdbDebuggingHandler

Bug: 242344103
Bug: 261526316
Test: m
Change-Id: I37fa9c7bb99d1ea1cef1bd42125bf0de7bc0adbd
(cherry picked from commit cb6ec60b034d6265cea391a3966ffdc9c72248d5)

services/core/java/com/android/server/adb/AdbDebuggingManager.java

@@ -667,6 +667,7 @@ public class AdbDebuggingManager {
                                     + " Not enabling adbwifi.");
                             Settings.Global.putInt(mContentResolver,
                                     Settings.Global.ADB_WIFI_ENABLED, 0);
+                            return;
                         }
 
                         // Check for network change
@@ -675,6 +676,7 @@ public class AdbDebuggingManager {
                             Slog.e(TAG, "Unable to get the wifi ap's BSSID. Disabling adbwifi.");
                             Settings.Global.putInt(mContentResolver,
                                     Settings.Global.ADB_WIFI_ENABLED, 0);
+                            return;
                         }
                         synchronized (mAdbConnectionInfo) {
                             if (!bssid.equals(mAdbConnectionInfo.getBSSID())) {