nve0/ppp: enable support via nvc0's implementation

NVIDIA also appear to use the same class on Fermi/Kepler for PPP.

Will allow use of the engine if firmware (nvXX_fuc086) provided.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/core/subdev/device/nve0.c

@@ -47,6 +47,7 @@
 #include <engine/copy.h>
 #include <engine/bsp.h>
 #include <engine/vp.h>
+#include <engine/ppp.h>
 
 int
 nve0_identify(struct nouveau_device *device)
@@ -78,6 +79,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_ENGINE_COPY1  ] = &nve0_copy1_oclass;
 		device->oclass[NVDEV_ENGINE_BSP    ] = &nve0_bsp_oclass;
 		device->oclass[NVDEV_ENGINE_VP     ] = &nve0_vp_oclass;
+		device->oclass[NVDEV_ENGINE_PPP    ] = &nvc0_ppp_oclass;
 		break;
 	case 0xe7:
 		device->cname = "GK107";
@@ -105,6 +107,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_ENGINE_COPY1  ] = &nve0_copy1_oclass;
 		device->oclass[NVDEV_ENGINE_BSP    ] = &nve0_bsp_oclass;
 		device->oclass[NVDEV_ENGINE_VP     ] = &nve0_vp_oclass;
+		device->oclass[NVDEV_ENGINE_PPP    ] = &nvc0_ppp_oclass;
 		break;
 	default:
 		nv_fatal(device, "unknown Kepler chipset\n");