SMB2: better RSVD flow

SMB2: better RSVD flow

Fixed FSCTL_QUERY_SHARED_VIRTUAL_DISK_SUPPORT dissector
to show fields of response properly - see
https://msdn.microsoft.com/en-us/library/dn409282.aspx

Mapped few SMB2 IOCTL codes related to RSVD to names
(like FSCTL_STORAGE_QOS_CONTROL that is defined by MS-SQOS
as a helper for RSVD protocol)

Added RSVD-specific SMB2 status codes
(used in SMB2 transport when RSVD is in use or inited)
See https://msdn.microsoft.com/en-us/library/dn392518.aspx

Change-Id: I04d80df234505e8b32773ac95cf0b73f07cc5581
Reviewed-on: https://code.wireshark.org/review/19693
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>