minui: Fix the wrong move of the callback.

The input_cb in ev_init() should be shared among the detected input
devices.

Test: Boot into recovery. Check key inputs.
Change-Id: I0315f6a23625bacedd333fefacbf4ac6797bc1fd

minui/events.cpp

@@ -97,7 +97,7 @@ int ev_init(ev_callback input_cb, bool allow_touch_inputs) {
       }
 
       ev_fdinfo[ev_count].fd = fd;
-      ev_fdinfo[ev_count].cb = std::move(input_cb);
+      ev_fdinfo[ev_count].cb = input_cb;
       ev_count++;
       ev_dev_count++;
       if (ev_dev_count == MAX_DEVICES) break;