Fix compiles with clang that have this C++11 error:
src/gallium/drivers/radeon/r600_pipe_common.h:662:34:
error: invalid suffix on literal; C++11 requires a space between literal
and identifier [-Wreserved-user-defined-literal]
Cc: "11.1 11.2" <mesa-stable@lists.freedesktop.org>
Cc: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>