* Fix cart info if ejected not in drive menu
* Fix a couple ramdrive issues
- Unmount ramdrive if Slot-2 RAM is ejected
- Fix potentially reading from the wrong location if numSectors > 1 and crosses between locations
- free ramdLoc on regular DS too
- Use calloc to 0 initialize, I saw it mess up occasionally on DSi too
* Update time in the Vblank handler