cifs: update comments - [s/GlobalSMBSesLock/cifs_file_list_lock/g]

GlobalSMBSesLock is now cifs_file_list_lock. Update comments to reflect this.

Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
3 files changed