bakery: Move mk_nfsiostat rulespec to cmk/plugins/collection/rulesets/

Change-Id: I1da6440401be47e3cf8e2fca563abda2bf6ee6e7

Author: mo-ki

…s/legacy_bakery_rulesets/mk_nfsiostat.py …gins/collection/rulesets/mk_nfsiostat.pycmk/gui/plugins/legacy_bakery_rulesets/mk_nfsiostat.py renamed to cmk/plugins/collection/rulesets/mk_nfsiostat.py cmk/gui/plugins/legacy_bakery_rulesets/mk_nfsiostat.py renamed to cmk/plugins/collection/rulesets/mk_nfsiostat.py

@@ -5,7 +5,7 @@
 
 import pytest
 
-from cmk.gui.plugins.legacy_bakery_rulesets.mk_nfsiostat import migrate
+from cmk.plugins.collection.rulesets.mk_nfsiostat import migrate
 
 
 @pytest.mark.parametrize(