drm/nouveau/ofa: bump max instances to 2

560.28.03 supports more NVENC instances.

Signed-off-by: Ben Skeggs <bskeggs@nvidia.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Timur Tabi <ttabi@nvidia.com>
Tested-by: Timur Tabi <ttabi@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Author: Ben Skeggs

drivers/gpu/drm/nouveau/include/nvkm/core/layout.h

@@ -45,7 +45,7 @@ NVKM_LAYOUT_ONCE(NVKM_ENGINE_MSVLD   , struct nvkm_engine  ,    msvld)
 NVKM_LAYOUT_INST(NVKM_ENGINE_NVDEC   , struct nvkm_nvdec   ,    nvdec, 8)
 NVKM_LAYOUT_INST(NVKM_ENGINE_NVENC   , struct nvkm_nvenc   ,    nvenc, 4)
 NVKM_LAYOUT_INST(NVKM_ENGINE_NVJPG   , struct nvkm_engine  ,    nvjpg, 8)
-NVKM_LAYOUT_ONCE(NVKM_ENGINE_OFA     , struct nvkm_engine  ,      ofa)
+NVKM_LAYOUT_INST(NVKM_ENGINE_OFA     , struct nvkm_engine  ,      ofa, 2)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_SEC     , struct nvkm_engine  ,      sec)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_SEC2    , struct nvkm_sec2    ,     sec2)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_SW      , struct nvkm_sw      ,       sw)