mm/vmalloc: fix a comment

The sentence
"but the mempolcy want to alloc memory by interleaving"
should be rephrased with
"but the mempolicy wants to alloc memory by interleaving"
where "mempolicy" is a struct name.

This work is coauthored by
Yinan Zhang
Jiajian Ye
Shenghong Han
Chongxi Zhao
Yuhong Feng
Yongqiang Liu

Link: https://lkml.kernel.org/r/20220401064543.4447-1-caoyixuan2019@email.szu.edu.cnSigned-off-by: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/vmalloc.c

@@ -2895,7 +2895,7 @@ vm_area_alloc_pages(gfp_t gfp, int nid,
 			/* memory allocation should consider mempolicy, we can't
 			 * wrongly use nearest node when nid == NUMA_NO_NODE,
 			 * otherwise memory may be allocated in only one node,
-			 * but mempolcy want to alloc memory by interleaving.
+			 * but mempolicy wants to alloc memory by interleaving.
 			 */
 			if (IS_ENABLED(CONFIG_NUMA) && nid == NUMA_NO_NODE)
 				nr = alloc_pages_bulk_array_mempolicy(bulk_gfp,