Changes to hp-pnnl patch files to make them work on hp-pnnl kernels.

Changes to hp-pnnl patch files to make them work on hp-pnnl kernels.
- drop hp-pnnl specific intent patch, the vanilla works
- redo xattr patch, exported symbols must be in uniquely named files if
  modversions is turned on.  These changes should likely also be ported
  to the other series, since they can have the same problem if
  modversions gets turned on.  Be careful when adding new exports to
  make sure the file including the export is uniquely named across the
  entire kernel.