Revert "drm/amdgpu/gfx11: enable gfx pipe1 hardware support"

This reverts commit 6670142d.

Pierre-Eric reported problems with this on his navi33.  Revert
for now until we understand what is going wrong.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Pierre-eric.Pelloux-prayer@amd.com

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

@@ -50,7 +50,7 @@
 #include "nbio_v4_3.h"
 #include "mes_v11_0.h"
 
-#define GFX11_NUM_GFX_RINGS		2
+#define GFX11_NUM_GFX_RINGS		1
 #define GFX11_MEC_HPD_SIZE	2048
 
 #define RLCG_UCODE_LOADING_START_ADDRESS	0x00002000L
@@ -1526,7 +1526,7 @@ static int gfx_v11_0_sw_init(void *handle)
 	case IP_VERSION(11, 0, 2):
 	case IP_VERSION(11, 0, 3):
 		adev->gfx.me.num_me = 1;
-		adev->gfx.me.num_pipe_per_me = 2;
+		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_pipe_per_mec = 4;
@@ -1537,7 +1537,7 @@ static int gfx_v11_0_sw_init(void *handle)
 	case IP_VERSION(11, 5, 0):
 	case IP_VERSION(11, 5, 1):
 		adev->gfx.me.num_me = 1;
-		adev->gfx.me.num_pipe_per_me = 2;
+		adev->gfx.me.num_pipe_per_me = 1;
 		adev->gfx.me.num_queue_per_pipe = 1;
 		adev->gfx.mec.num_mec = 1;
 		adev->gfx.mec.num_pipe_per_mec = 4;