Merge "drm/msm/sde: add missing documentation for merge3d blocks"

				from register "mdp_phys" defined in reg property.

- qcom,sde-pp-slave:		Array of flags indicating whether each ping pong

				block may be configured as a pp slave.

- qcom,sde-pp-merge-3d-id:	Array of index ID values for the merge 3d block

				connected to each pingpong, starting at 0.

- qcom,sde-merge-3d-off:	Array of offset addresses for the available

				merge 3d blocks. These offsets are calculated

				from register "mdp_phys" defined in reg property.

- qcom,sde-intf-off:		Array of offset addresses for the available SDE

				interface blocks that can drive data to a

				panel controller. The offsets are calculated

- qcom,sde-dsc-size:		A u32 value indicates the address range for each dsc.

- qcom,sde-cdm-size:		A u32 value indicates the address range for each cdm.

- qcom,sde-pp-size:		A u32 value indicates the address range for each pingpong.

- qcom,sde-merge-3d-size:	A u32 value indicates the address range for each merge 3d.

- qcom,sde-wb-size:		A u32 value indicates the address range for each writeback.

- qcom,sde-len:			A u32 entry for SDE address range.

- qcom,sde-intf-max-prefetch-lines:	Array of u32 values for max prefetch lines on