ntvfs: pass down the client capabilities into the ntvfs layer

ntvfs: pass down the client capabilities into the ntvfs layer

Note that we don't use any protocol specific values here.

For now only NTVFS_CLIENT_CAP_LEVEL_II_OPLOCKS is defined
others should be defined, when we find out that the ntvfs
layer needs to know about it.

metze
(This used to be commit cc42cd5f6753ca582677fa6f403f0419eec5ab10)