isl: implement linear tiling row pitch requirement for display

isl: implement linear tiling row pitch requirement for display

We're missing a requirement for alignment of row pitch for the display
HW. In linear tiling, the row pitch must be a 64bytes aligned.

v2: Use correct formula to align to 64bytes (Chad)

v3: Matching {} (Jason)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4243>