gpu: ipu-v3: image-convert: Combine rotate/no-rotate irq handlers

[ Upstream commit 0f6245f42ce9b7e4d20f2cda8d5f12b55a44d7d1 ]

Combine the rotate_irq() and norotate_irq() handlers into a single
eof_irq() handler.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>