drm/nouveau/mmu: Remove unneeded semicolon

Fixes coccicheck warning:

drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h:307:2-3: Unneeded semicolon
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c:583:2-3: Unneeded semicolon
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c

@@ -580,7 +580,7 @@ nvkm_vmm_iter(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
 				it.pte[it.lvl]++;
 			}
 		}
-	};
+	}
 
 	nvkm_vmm_flush(&it);
 	return ~0ULL;

drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h

@@ -304,7 +304,7 @@ int tu102_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		FILL(VMM, PT, PTEI, _ptes, MAP, _addr);                        \
 		PTEI += _ptes;                                                 \
 		PTEN -= _ptes;                                                 \
-	};                                                                     \
+	}                                                                      \
 	nvkm_done((PT)->memory);                                               \
 } while(0)