tests/gen7_forcewake_mt: Don't set the GGTT bit in SRM command

The command parser in newer kernels will reject it and setting this
bit is not required for the actual test case.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76670
Signed-off-by: Brad Volkin <bradley.d.volkin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
1 file changed