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isl: add matching display workaround to the kernel

There is a display workaround requiring extra alignment when framebuffer size > 3840 & CCS is used. The kernel is enforcing that alignment and rejects framebuffer that do not comply.

This change adds the workaround in ISL so that framebuffer allocated by the intel/mesa drivers (through GBM in this bug's case) respect that extra alignment.

Signed-off-by: Lionel Landwerlin Reported-by: Hans de Goede Bugzilla:

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