Rename to AdbDebuggingManager

Rename the UsbDebuggingManager to AdbDebuggingManager. It doesn't
technically depend on the USB stack, so rename to make the lack of
association more clear.

Bug: 63820489
Test: make
Change-Id: Ife83d3ec9701882781f5a9562ccc5435d51d246b
diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index 44bc3f2..71263f0 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -368,7 +368,7 @@
             android:excludeFromRecents="true">
         </activity>
 
-        <!-- started from UsbDebuggingManager -->
+        <!-- started from AdbDebuggingManager -->
         <activity android:name=".usb.UsbDebuggingActivity"
             android:permission="android.permission.MANAGE_USB"
             android:theme="@style/Theme.SystemUI.Dialog.Alert"