[AIX] Add '-bcdtors:all:0:s' to linker to gather static init functions

Summary: On AIX, add '-bcdtors:all:0:s' to the linker implicitly through the driver so that we can collect all static constructor and destructor functions.

Reviewers: hubert.reinterpretcast, Xiangling_L, ZarkoCA, daltenty

Reviewed By: hubert.reinterpretcast

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D80415