drm/exynos: ipp: fix wrong index referencing a config element
drm/exynos: ipp: fix wrong index referencing a config element

Config depends on the opreation. So it must be referenced by an
operation id, not a property id.

Signed-off-by: Hyungwon Hwang <5f743690db7c4e8ef24ca54e281a6e5d4c877f93@samsung.com>
Signed-off-by: Inki Dae <bae4a7a27bbc965064e97edd6e179ac4979db440@samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs