[Intel-gfx] [PATCH] drm/i915: Fix all pipe->plane mappings before sanitizing crtc

[shuang.he at intel.com]

Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he at intel.com)
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV                                  354/354              354/354
ILK                                  201/201              201/201
SNB              +1-1              401/424              401/424
IVB                                  488/488              488/488
BYT                                  278/278              278/278
HSW                                  529/529              529/529
BDW                 -1              405/405              404/405
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
 SNB  igt_kms_flip_flip-vs-dpms-off-vs-modeset-interruptible      NSPT(1, M35)PASS(10, M35M22)      PASS(1, M35)
*SNB  igt_gem_concurrent_blit_gtt-rcs-early-read-interruptible      PASS(10, M35M22)      DMESG_WARN(1, M35)
*BDW  igt_gem_concurrent_blit_gtt-bcs-gpu-read-after-write-interruptible      PASS(9, M30M28)      DMESG_WARN(1, M30)
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