drm/xe/tests/migrate: Fix the pt bo alignment

The pt bo might at some point have been a page-table bo but is now a pretty ordinary bo. In particular we set up L0 leaf PTEs pointing to it. However, since it's a VRAM bo, it must obey the L0 VRAM alignment, otherwise we might see a warning and general gpu confusion. Remove the XE_BO_CREATE_IGNORE_MIN_PAGE_SIZE_BIT.

Signed-off-by: Thomas Hellström thomas.hellstrom@linux.intel.com