[Mesa-stable] Don't cherry-pick Revert "radeonsi: disable DCC on Stoney"

[Marek Olšák]

Hi Emil,

Please don't cherry-pick this patch:

commit 37208c4fd7b1ec679d10992b42a2811cab8245a5
Author: Marek Olšák <marek.olsak at amd.com>
Date:   Fri Dec 11 15:08:00 2015 +0100

    Revert "radeonsi: disable DCC on Stoney"

    This reverts commit 32f05fadbbdf2a3fb60055e610bbbdcd82dd3ce5.

    It turned out the problem with Stoney was caused by incorrect handling of
    a non-power-two VRAM size in the kernel driver.
    This is an optional BIOS setting and can be worked around by choosing
    a different VRAM size in the BIOS.

    Cc: 11.1 <mesa-stable at lists.freedesktop.org>

The commit message is not completely right. DCC is broken on Stoney
for unknown reasons.

Marek