Rail vehicle y-offsets are incorrect

[PeterN]

Rail vehicle y-offsets are incorrectly setup as if "Y-Offset for train sprites (0E / 8E)" has been changed, which is not possible for a baseset.

This means the sprites are not aligned properly compared to the original baseset:

[zephyris]

Useful to note that OpenGFX2 matches the original graphics offsets and does not have this issue.