drm/amdgpu: Increase Max GPU instance to 64

Increase Max GPU instances to 64 to handle multi-socket
system with GFX 9.4.3 asic.
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu.h

@@ -108,7 +108,7 @@
 #include "amdgpu_mca.h"
 #include "amdgpu_ras.h"
 
-#define MAX_GPU_INSTANCE		16
+#define MAX_GPU_INSTANCE		64
 
 struct amdgpu_gpu_instance
 {