i915: prefer tile4 for non-linear scanout buffers

fix a typo in combinations affecting the legacy (no explicit modifiers)
allocation path.

BUG=b:279974016, b:243459433
TEST=glxgears in Crostini on MTL

Change-Id: I97d5a66effd82d8265bb2b977d623ee07bad5af0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/4492277
Commit-Queue: Yiwei Zhang <[email protected]>
Tested-by: Ryan Neph <[email protected]>
Reviewed-by: Yiwei Zhang <[email protected]>
Reviewed-by: Lina Versace <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
1 file changed