drm/msm: remove support for ping pong split topology

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b4 am [email protected]

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2 of 6 patches are in this archive. Their subjects are numbered up to 6.

#	Subject and files	Size	Replies	Applied
2/6	drm/msm: remove support for ping pong split topology`drivers/gpu/drm/msm/disp/dpu1/dpu_connector.c` `drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c` `drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c` +10 more	+15 ~~-415~~	0 replies
4/6	drm/msm: strip down custom event ioctl's`drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c` `drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h` `drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c` +2 more	+1 ~~-452~~	0 replies

All 2 patches have a Reviewed-by or Acked-by.

Patch	Sean Paul
2/6	R-b
4/6	R-b

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.