drm/amdgpu/gfx11: fix num_mec

GC11 only has 1 mec.

Fixes: 3d879e8 ("drm/amdgpu: add init support for GFX11 (v2)")
Reviewed-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c

@@ -1581,7 +1581,7 @@ static int gfx_v11_0_sw_init(struct amdgpu_ip_block *ip_block)
 		adev->gfx.me.num_me = 1;
 		adev->gfx.me.num_pipe_per_me = 1;
 		adev->gfx.me.num_queue_per_pipe = 1;
-		adev->gfx.mec.num_mec = 2;
+		adev->gfx.mec.num_mec = 1;
 		adev->gfx.mec.num_pipe_per_mec = 4;
 		adev->gfx.mec.num_queue_per_pipe = 4;
 		break;