parisc: Enable SPARSEMEM_VMEMMAP

Enable the SPARSEMEM VMEMMAP implementation on parisc.
The vmemmap is mapped at a virtual address which is higher than the
addressable physical address (0x8000000000).

This patch could be optimized by rewriting vmemmap_populate() to utilize
large pages.

Signed-off-by: Helge Deller <deller@gmx.de>
3 files changed