[dfsan] Add Origin ABI Wrappers

    Supported strrchr, strrstr, strto*, recvmmsg, recrmsg, nanosleep,
    memchr, snprintf, socketpair, sprintf, getocketname, getsocketopt,
    gettimeofday, getpeername.

    strcpy was added because the test of sprintf need it. It will be
    committed by D98966. Please ignore it when reviewing.

    This is a part of https://reviews.llvm.org/D95835.

    Reviewed By: gbalats

    Differential Revision: https://reviews.llvm.org/D99109

Author: stephan-yichao-zhao