Fix various typos

Correct an assortment of typos throughout the code base.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Closes #11774

include/os/freebsd/spl/sys/vnode_impl.h

@@ -210,7 +210,7 @@ enum create	{ CRCREAT, CRMKNOD, CRMKDIR };	/* reason for create */
  *
  * The cc_caller_id is used to identify one or more callers who invoke
  * operations, possibly on behalf of others.  For example, the NFS
- * server could have it's own cc_caller_id which can be detected by
+ * server could have its own cc_caller_id which can be detected by
  * vnode/vfs operations or (FEM) monitors on those operations.  New
  * caller IDs are generated by fs_new_caller_id().
  */

include/os/linux/kernel/linux/blkdev_compat.h

@@ -261,7 +261,7 @@ bio_set_bi_error(struct bio *bio, int error)
  * For older kernels trigger a re-reading of the partition table by calling
  * check_disk_change() which calls flush_disk() to invalidate the device.
  *
- * For newer kernels (as of 5.10), bdev_check_media_chage is used, in favor of
+ * For newer kernels (as of 5.10), bdev_check_media_change is used, in favor of
  * check_disk_change(), with the modification that invalidation is no longer
  * forced.
  */

include/os/linux/kernel/linux/mod_compat.h

@@ -83,7 +83,7 @@ enum scope_prefix_types {
 /*
  * Declare a module parameter / sysctl node
  *
- * "scope_prefix" the part of the the sysctl / sysfs tree the node resides under
+ * "scope_prefix" the part of the sysctl / sysfs tree the node resides under
  *   (currently a no-op on Linux)
  * "name_prefix" the part of the variable name that will be excluded from the
  *   exported names on platforms with a hierarchical namespace