[IBAL] Remove TO_LONG_PTR from IOCTL structures.

[IBAL] Remove TO_LONG_PTR from IOCTL structures.

This patch removes all instances of TO_LONG_PTR from internal IOCTL structures.  The only place TO_LONG_PTR should be used is in public structures that contain pointers and are exchanged between user-mode and kernel-mode.  Actually, the code should ideally have proxy structures for such API structures into which API structure members
are copied member-wise, and whose size is fixed.  Unused pointers should be stripped from the IOCTL proxy structures.  But that's a change for some other time...

All fields in internal IOCTL structures that were formerly TO_LONG_PTR are not uint64_t, and all uses have appropriate casts.

Signed-off-by: Fab Tillier <ftillier@microsoft.com>
git-svn-id: svn://openib.tc.cornell.edu/gen1@1386 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86