media: rcar_fdp1: Make use of the helper function devm_platform_ioremap_resource()

[ Upstream commit 736cce12 ]

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Stable-dep-of: c766c90f ("media: rcar_fdp1: Fix refcount leak in probe and remove function")
Signed-off-by: Sasha Levin <sashal@kernel.org>