linuxkpi: Add `io_mapping_map_local_wc()` and `io_mapping_unmap_local()`

[dumbbell]

Summary

io_mapping_map_local_wc() is synonymous to io_mapping_map_atomic_wc().

This is part of the update of the DRM drivers to Linux 5.14.

[manu]

What's the difference in Linux ?

[dumbbell]

In D38156#866976, @manu wrote:

What's the difference in Linux ?

Like in D38155, the *_atomic variant turn off preemption and page faults between the map and the unmap, something the *_local variant doesn't do.