[DDK/NDIS]

[DDK/NDIS]
- Group some related definitions.
- Remove some duplicated NDIS_MINIPORT_MAJOR_VERSION/NDIS_MINIPORT_MINOR_VERSION combinations.
- Add some missing NDIS_LEGACY_DRIVER guards.
- _ANONYMOUS_UNION -> __MINGW_EXTENSION
- Update NDIS_PROCESSOR_TYPE and NDIS_INTERFACE_TYPE.
- Guard NDIS_GENERIC_OBJECT with NDIS_SUPPORT_NDIS6.
- Add missing NDIS_WAN_GET_STATS, NdisAllocateGenericObject, NdisFreeGenericObject, fPACKET_WRAPPER_RESERVED and NDIS_FLAGS_* definitions.
- PNDIS_PACKET_POOL : HANDLE -> NDIS_HANDLE.
- Improve MEDIA_SPECIFIC_INFORMATION
- Some minor formatting.

svn path=/trunk/; revision=48169