As of MATLAB R2019b, we do not currently support the Coral Dev board in the form of a hardware support package. However this does not necessarily mean you cannot deploy generated code to it.
The coder products, Embedded Coder in particular, generate C-code that is compatible with any processor that can run C-code. You can generate the C-code and deploy it to the device using board-specific build tools as you would deploy any other C-code.
For more information on hardware supported by the Embedded Coder, please see the following documentation page: