ksmbd: release 3.4.8 version
Major changes are:
- Code cleanups and optimization.
- Fix xfstests generic/551 test failure.
- Fix memleaks and KASAN warnings.
- return correct error for unsupported smb1, smb2.0 mount.
- Fix AES256 signing bug when connected to from MacOS.
- Fix for overly frequent inactive session termination.
- Fix to advertise named stream support correctly.
- Two fixes to return less confusing messages on unsupported dialects
(STATUS_NOT_SUPPORTED instead of I/O error) - Two important fixes for frame length checks (which are also now stricter)