restapi: NUMA pinning doesn't work

Fixing constant mapping to false in NumaMapper.

Change-Id: I281ba2eb0b08b3015ae8c6de758b540eb5d717e8
Bug-Url: https://bugzilla.redhat.com/1148027
Signed-off-by: Gilad Chaplik <gchaplik@redhat.com>
(cherry picked from commit 41da64e3613b11b61bf752c542dd9413ab5a6e66)