Initialize intent to avoid nullpointer exception

Fix: 203586231
Test: Manually flashed, installed two apps that can handle USB devices, verified dialog opens as expected.
Change-Id: I146301c24ca161d5f5ae68f9943120c8fa137a29

packages/SystemUI/src/com/android/systemui/usb/UsbResolverActivity.java

@@ -112,6 +112,7 @@ public class UsbResolverActivity extends ResolverActivity {
                 mOtherProfileIntent.putParcelableArrayListExtra(EXTRA_RESOLVE_INFOS,
                         rListOtherProfile);
             } else {
+                mOtherProfileIntent = new Intent();
                 mOtherProfileIntent.setComponent(ComponentName.unflattenFromString(
                         this.getResources().getString(
                                 com.android.internal.R.string.config_usbConfirmActivity)));