example gapuino-mbed-autotiler-cifar10: "Gap8.h: No such file or directory"

Cannot compile the example because of the following error:
```
/kernels/src/CNN_Pooling_BasicKernels.c:1:10: fatal error: Gap8.h: No such file or directory
...
```
Run `pio run` in the example root folder.

Platformio core 3.6.6
