[CIFS] fix some settings of cifsAttrs after calling SetFileInfo and SetPathInfo

We only need to set them when we call SetFileInfo or SetPathInfo
directly, and as soon as possible after then. We had one place setting
it where it didn't need to be, and another place where it was missing.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>