Cherry pick pserver merge selected rows

cherry-pick Scale support selectedrows (#12960)

Refine while op

"fix style" (#13094)

Reorder the cmake import and add CUDNN_INCLUDE_DIR into anakin cmake

Fix bug when loss@GRAD is reused. (Release Branch)

* Fix bug in flowers dataset. (#13024)

fix tensorrt compiler error

* add ScaleOpVarTypeInference for scale op

* scale op support scale selected rows

* optimize code

* use FindVar

* use FindVarRecursive in ScaleOpVarTypeInference

Tensorrt support : mobilenet  resnet50

fix auc layer and add check for auc op (#12954)

(cherry-pick from commit 478eeabd)

(cherry-pick from commit 3de45566)

Merge pull request from #12843 from NHZlX:fix_ssa_bug_for_trt

Because of the changing trt engine op from gpu to gpu mode.

(cherry-pick from commit 145b20c160329428c1ec05c94287708aa1ed6f63)

cherry-pick from commit 133ec696

(cherry picked from commit 1600ba86)

fix bug to avoid warning once import paddle.fluid

Merge pull request #12780 from panyx0718/ir4

fix sparse update bug

fix ProgramToGraph

(cherry picked from commit e525aa23)

Fix flowers dataset download problem

* fix auc layer and add check for auc op

* use input to check if states are inited

* optimize code

update native_infer.rst