[cherry-pick][Inference] support mixed precision inference (#49077)

* [Release2.4] Revert python link prs (#48573)

* Revert "Fix mac link python (#48017)"

This reverts commit 3fa7a73.

* Revert "[Cherry-pick] Fix python link error (#47811)"

This reverts commit ff642c6.

* Update config.go

* [Paddle Inference] Add float_to_half_pass to support  inference with mixed precision (#47993)

* [Inference] optimize some code and fix some bug (#48780)

* clean ir_pass_manager and fix map_depthwise_conv_to_conv_pass

* fix unitest timeout

* [Paddle Inference] clean unused code  (#48392)

* fix

* update

* update

Co-authored-by: Chen Weihang <chenweihang@baidu.com>

paddle/fluid/framework/ir/CMakeLists.txt

@@ -148,6 +148,7 @@ pass_library(delete_c_identity_op_pass inference)
 pass_library(preln_residual_bias_fuse_pass inference)
 pass_library(delete_fill_constant_op_pass inference)
 pass_library(constant_folding_pass inference)
+pass_library(auto_mixed_precision_pass inference)
 pass_library(simplify_with_basic_ops_pass base)
 pass_library(fc_elementwise_layernorm_fuse_pass base)
 pass_library(skip_layernorm_fuse_pass base)