Comment # 5 on bug 91985 from Kai

Fixed by:
commit d6fbcf6ee28c273b37bf293aea5faf77253029a3
Author: Kai Wasserbäch <kai@dev.carbon-project.org>
Date:   Sat Sep 12 10:39:50 2015 +0200

    r600: Fix llvm build since const buffer changes

    In commit f9caabe8f1bff86d19b53d9ecba5c72b238d9e23:

    One place in r600_llvm.c was forgotten when replacing
    R600_UCP_CONST_BUFFER with R600_BUFFER_INFO_CONST_BUFFER.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91985
    Signed-off-by: Kai Wasserbäch <kai@dev.carbon-project.org>
    Signed-off-by: Dave Airlie <airlied@gmail.com>

Thanks to Dave, for commiting this!