drm/nouveau/tmr: convert to new-style nvkm_subdev

drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

drivers/gpu/drm/nouveau/nvkm/engine/device/gf100.c

drivers/gpu/drm/nouveau/nvkm/engine/device/gk104.c

drivers/gpu/drm/nouveau/nvkm/engine/device/gm100.c

drivers/gpu/drm/nouveau/nvkm/engine/device/nv04.c

drivers/gpu/drm/nouveau/nvkm/engine/device/nv10.c

drivers/gpu/drm/nouveau/nvkm/engine/device/nv20.c

drivers/gpu/drm/nouveau/nvkm/engine/device/nv30.c

drivers/gpu/drm/nouveau/nvkm/engine/device/nv40.c

drivers/gpu/drm/nouveau/nvkm/engine/device/nv50.c

drivers/gpu/drm/nouveau/nvkm/engine/device/user.c

drivers/gpu/drm/nouveau/nvkm/engine/gr/nv50.c

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk20a.c

drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c

drivers/gpu/drm/nouveau/nvkm/subdev/therm/fan.c

drivers/gpu/drm/nouveau/nvkm/subdev/therm/fantog.c

drivers/gpu/drm/nouveau/nvkm/subdev/therm/temp.c

drivers/gpu/drm/nouveau/nvkm/subdev/timer/Kbuild

drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c