sh: Export sh7366 VPU, VEU(1), VEU(2) using uio_pdrv_genirq

This patch exports the VPU, VEU(1) and VEU(2) blocks of the sh7366
to user space using the uio_pdrv_genirq platform driver.

While at it, fix up the VEU(2) interrupt vector.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>