Various files assume that `error.h` is part of the c library (it isn't). These files include at least:-

```
drivers/bus/fslmc/qbman/include/compat.h
drivers/bus/dpaa/include/compat.h
bus/dpaa/base/fman/netcfg_layer.c
```

`drivers/bus/fslmc/qbman/include/compat.h` needs `#include <stdio.h>`

`drivers/bus/dpaa/include/fsl_qman.h` assumes uses the privately namespaced `__WORDSIZE` is defined.

There are probably other defects.