drm/amdgpu: increase mes submission timeout

MES internally has a timeout allowance of 2 seconds.
Increase driver timeout to 3 seconds to be safe.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/mes_v11_0.c

@@ -108,7 +108,7 @@ static int mes_v11_0_submit_pkt_and_poll_completion(struct amdgpu_mes *mes,
 	struct amdgpu_device *adev = mes->adev;
 	struct amdgpu_ring *ring = &mes->ring;
 	unsigned long flags;
-	signed long timeout = adev->usec_timeout;
+	signed long timeout = 3000000; /* 3000 ms */
 	u32 fence_offset;
 	u64 fence_gpu_addr;
 	u64 *fence_ptr;