As far as I can see, XDE 11.2.1 does not have files supporting devices in TQ48 package. I had to roll my own. If anyone wants to check my work, please feel free. I've attached a zip file with the three needed files. I don't understand why there's no support for all current silicon (at least) in the development tool :(
To use the files, you need to add the following line to configs/config_index file:
All of the files go into the configs folder within your XDK installation.
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