drm/msm/sde: move scaler config data into plane state

Move the parsed user data for scaler configuration from
the sde plane structure into the sde plane state structure.

This is needed to properly support asynchronous commits;
a current working copy of user properties is provided to
the worker thread via a local plane state structure during
asynchronous commits while incoming configuration for
subsequent frame updates operate on a different instance
of the plane state structures.

CRs-Fixed: 2062084
Change-Id: I353c57bb7691c0d427b7426b52d70f8ef982a2fd
Signed-off-by: Clarence Ip <cip@codeaurora.org>