Change VI interrupt trigger value to 0x2
Change VI interrupt trigger value to 0x2

It was found that VI interrupts are currently triggered mid-frame.
This commit changes it to a common value used in commercial games.

DragonMinded/libdragon,sp1187/libdragon,DragonMinded/libdragon,DragonMinded/libdragon,sp1187/libdragon,sp1187/libdragon