Linux 4.21 kernel

From Arnd Bergmann, kernel changes (“system call rework for 64-bit time_t”) for the Linux 4.21 kernel from December 2018.

As before, nothing changes for 64-bit architectures, while 32-bit architectures gain another entry point that differs only in the layout of the timespec structure. Hopefully in the next release we can wire up all 22 of those system calls on all 32-bit architectures, which gives us a baseline version for glibc to start using them.