Merge pull request !8013 from liyong126/fix_md_pad

Merge pull request !8025 from TronZhang/limit_fuseop_name_len

Merge pull request !8018 from jianghui58/master

Merge pull request !8023 from ZengZitao/expand_bias_add

Merge pull request !8031 from ghzl/keams-and-efficicnet

Merge pull request !8029 from liuwenhao/master

Merge pull request !7983 from lilei/modify_version

Merge pull request !7947 from Chong/BERT

Merge pull request !7987 from yuchaojie/quant3

Merge pull request !8027 from ling/bug

Merge pull request !7997 from xulei/lite_test0905

Add a pass `tensor_promotion`.
Fix a bug in CreateKernelInfoFromNewParameter, which reset the KernelInfo by mistake.

what's more:
  Update akg
  Fixbug in model_builder when reduce axis is an interger.

Merge pull request !7693 from wanyiming/add_sigmoid_cross_entropy_with_logit_cpu

Merge pull request !7984 from wanyiming/add_output

Merge pull request !7792 from zhaozhenlong/lite/issue/scale_int8_remove_fusion

Merge pull request !7991 from yihuaijie/dev

Merge pull request !7990 from liuwenhao/master

Merge pull request !7977 from XianglongZeng/myms

Merge pull request !7965 from caozhou/add_formula

Merge pull request !7993 from ZengZitao/delete_sub_graph_changed

Merge pull request !8009 from hangq/primitive

Merge pull request !7998 from hwjiaorui/master

Merge pull request !7982 from gongdaguo/adaptation_version

Merge pull request !7979 from zhaozhenlong/lite/issue/arithmetic_parameter_free_if_needed

Merge pull request !7996 from 徐安越/master