Sorry... I got slightly muddled between two very similar NFC questions. I'd not remembered that this question related to Android.
The answer for Android is more complex.
In general external USB readers cannot be plugged into an non-NFC tablet (for example) and hooked up via USB OTG. However it is likely to be possible to customise the AOSP/Hikey HAL to make an external USB NFC device look like a real one. However it's a DIY option. I doubt it will work out-of-the-box so you may need to learn a fair bit about the NFC HAL layer to get anything to work.