media: meson-ge2d: fix rotation parameters

With these settings, 90deg and 270deg rotation leads to inverted
vertical, fix them to have correct rotation.

Fixes: 59a63532 ("media: meson: Add M2M driver for the Amlogic GE2D Accelerator Unit")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>