eal/linux: force IOVA as PA mode if KNI module inserted

eal/linux: force IOVA as PA mode if KNI module inserted

Fix kernel crash with KNI because KNI requires physical addresses.

When IOVA VA mode used, memzones and mbufs physical address fields
contain virtual addresses. But KNI relies on these fields to enable
kernel access for buffers. Those fields having virtual address cause
crash in kernel.

This is a workaround until KNI fixed properly to work with virtual
addresses.

Fixes: 72d013644bd6 ("mem: honor IOVA mode in malloc virt2phy")

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>