chimera: tigger action with FsInode_PSET#setStat()

requires corresponding nfs changes

Ticket: #8201
Acked-by: Albert Rossi
Acked-by: Gerd Behrmann
Target: master, 2.6, 2.7
Require-book: no
Require-notes: no
(cherry picked from commit 02a022da2a414331fa720907a85e084b846d9da8)
Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Merge pull request #383 from kofemann/iss8201-2.7

chimera: tigger action with FsInode_PSET#setStat()