st_atim, st_mtim and st_ctim interface.
(struct stat64): Likewise.
* sysdeps/unix/sysv/linux/mips/kernel_stat.h (struct kernel_stat):
Replace st_atime and its padding field with st_atim. Likewise
st_mtime/st_mtim and st_ctime/st_ctim.
* sysdeps/unix/sysv/linux/mips/xstatconv.c (__xstat_conv): Update
after above changes.
(__xstat64_conv): Likewise.