[Intel-gfx] [PATCH] drm: Adding rotation to drm_plane_helper_check_update

[shuang.he at intel.com]

Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he at intel.com)
Task id: 5579
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV                                  353/353              353/353
ILK                                  355/355              355/355
SNB                                  400/422              400/422
IVB                 -2              487/487              485/487
BYT                                  296/296              296/296
HSW                                  486/508              486/508
BDW                 -1              402/402              401/402
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
*IVB  igt_kms_cursor_crc_cursor-256x256-offscreen      DMESG_WARN(1, M4)PASS(2, M34M21)      FAIL(1, M21)
*IVB  igt_kms_cursor_crc_cursor-64x64-offscreen      DMESG_WARN(1, M4)PASS(2, M34M21)      FAIL(1, M21)
*BDW  igt_gem_concurrent_blit_gtt-rcs-early-read-interruptible      PASS(5, M30M28)      DMESG_WARN(1, M30)
Note: You need to pay more attention to line start with '*'