NFS: Fix free_deveiceid -> free_deviceid

Make it easier to grep for these functions by name.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 91e88a7..5639a2e 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -1086,7 +1086,7 @@
 }
 
 static void
-filelayout_free_deveiceid_node(struct nfs4_deviceid_node *d)
+filelayout_free_deviceid_node(struct nfs4_deviceid_node *d)
 {
 	nfs4_fl_free_deviceid(container_of(d, struct nfs4_file_layout_dsaddr, id_node));
 }
@@ -1137,7 +1137,7 @@
 	.read_pagelist		= filelayout_read_pagelist,
 	.write_pagelist		= filelayout_write_pagelist,
 	.alloc_deviceid_node	= filelayout_alloc_deviceid_node,
-	.free_deviceid_node	= filelayout_free_deveiceid_node,
+	.free_deviceid_node	= filelayout_free_deviceid_node,
 };
 
 static int __init nfs4filelayout_init(void)