powerpc/numa: make vphn_enabled, prrn_enabled flags const

Previous changes have made it so these flags are never changed;
enforce this by making them const.

Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200612051238.1007764-6-nathanl@linux.ibm.com
This commit is contained in:
Nathan Lynch 2020-06-12 00:12:25 -05:00 • committed by Michael Ellerman
commit e6eacf8eb4