Merge "dt-bindings: drm: msm: update detach handoff option for shp"

This driver allows to create multiple virtual planes from the same

physical plane. Only one plane can be activated at a time.

This device must be added to the connectors list of qcom,sde-kms device.

Required properties:

- compatible:		"qcom,sde-shared-plane"

- qcom,add-planes:	Shared planes to add to the DRM system. Each child

			to handoff state at system bootup.

	qcom,plane-init-active: optional boolean, if set, the plane is inited to

			active state at system bootup.

	qcom,plane-detach-handoff: optional boolean, if set, the plane is set to

			handoff state whenever it is detached.

	qcom,plane-detach-handoff: optional boolean, if set, and when the plane

			set handoff to true and crtc to null, the plane will

			immediately become inaccessible and handoff will reset

			to false.

Example: