Fix incorrect status code returned by VBESetPowerState()
in the VBE miniport driver.
- VBESetPowerState() returned `VBE_SUCCESS` (`0x4F`, raw VESA BIOS AL
success code) instead of `NO_ERROR` on success, so callers checking for
`NO_ERROR` would treat every successful DPMS power-state change
as a failure. Change it to `NO_ERROR`.
- Change annotations to SAL2 in the source and header.
Fix an out of bounds heap read when compacting the ghost device list.
Change the loop condition from `GhostPort < DeviceRelations->Count` to
`GhostPort < DeviceRelations->Count - 1` so the array shift never reads
past the last valid entry.
- Fix memory leak in WdmAudGetDeviceInterface() (FreeItem(Device) was not called on STATUS_BUFFER_OVERFLOW early return path).
- Wrap user-mode buffer write in ProbeForWrite() + SEH2().
Alex Mendoza