llvm-project

79601cec - [libc][POSIX] Add clock_settime() function for Linux (#161729)

[libc][POSIX] Add clock_settime() function for Linux (#161729) Closes #161461 - This is my first time contributing to libc's POSIX, so for reference I used `clock_gettime` implementation for Linux. For convenience, here is the description of `clock_settime` function [behavior](https://www.man7.org/linux/man-pages/man3/clock_settime.3.html)