docs: vfio: fix header path

The text points to a different header file, fix by changing
the path to "uapi".

Signed-off-by: Jiri Pirko <[email protected]>
Reviewed-by: Yi Liu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>

Author: Jiri Pirko

Documentation/driver-api/vfio.rst

@@ -242,7 +242,7 @@ group and can access them as follows::
 VFIO User API
 -------------------------------------------------------------------------------
 
-Please see include/linux/vfio.h for complete API documentation.
+Please see include/uapi/linux/vfio.h for complete API documentation.
 
 VFIO bus driver API
 -------------------------------------------------------------------------------