s390/hypfs: fix typos in comments

Various spelling mistakes in comments.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Heiko Carstens <[e-mail]>

arch/s390/hypfs/hypfs_vm.c

···
 	if (IS_ERR(data))
 		return PTR_ERR(data);
 
-	/* Hpervisor Info */
+	/* Hypervisor Info */
 	dir = hypfs_mkdir(root, "hyp");
 	if (IS_ERR(dir)) {
 		rc = PTR_ERR(dir);