[Intel-gfx] [PATCH 2/2] drm/fb_helper: move deferred fb checking

[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                                  366/366              366/366
ILK                 -2              371/371              369/371
SNB                                  450/450              450/450
IVB                                  498/498              498/498
BYT                                  289/289              289/289
HSW                 -1              564/564              563/564
BDW                                  417/417              417/417
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
 ILK  igt_gem_reset_stats_close-pending-fork-render      TIMEOUT(22, M37M26)PASS(1, M26)      TIMEOUT(1, M37)
 ILK  igt_kms_flip_vblank-vs-hang      TIMEOUT(21, M37M26)PASS(1, M26)      TIMEOUT(1, M37)
*HSW  igt_kms_fence_pin_leak      PASS(6, M20M19)      DMESG_WARN(1, M19)
Note: You need to pay more attention to line start with '*'