Lib.VideoOut: Properly remove events on close (#4456)

* Fix flip status on close

* Store equeues by handle instead of pointer

As is, a game could call sceKernelDeleteEqueue on the equeue registered for flip/vblank events, and terminate the equeue while our VideoOut driver retains a valid pointer to it.
Changing to storing the equeue handle means we can check if the equeue still exists and prevent this.

* Remove flip and vblank events on sceVideoOutClose

* Don't forget to clear vectors

* Oops

Intended to erase the memset on FlipStatus, not VblankStatus.