mempool/octeontx2: fix pool populating

mempool/octeontx2: fix pool populating

Fix npa pool range errors observed while creating mempool, this issue
happens when mempool objects are from different mem segments.

During mempool creation, octeontx2 mempool driver populates pool range
fields before enqueuing the buffers. If any enqueue or dequeue operation
reaches npa hardware prior to the range field's HW context update,
those ops result in npa range errors. Patch adds a routine to read back
HW context and verify if range fields are updated or not.

Fixes: e5271c507aeb ("mempool/octeontx2: add remaining slow path ops")

Signed-off-by: Vamsi Attunuru <vattunuru@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>