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.
* sysdeps/unix/sysv/linux/mips/mips64/n32/truncate64.c: New.
* sysdeps/unix/sysv/linux/kernel-features.h: fcntl64 is available
on mips n32.
* sysdeps/unix/sysv/linux/mips/kernel_stat.h: Explain why
XSTAT_IS_XSTAT64 must not be used for mips n64. Use 64-bit data
structure on n32 as well.
* sysdeps/unix/sysv/linux/mips/bits/stat.h: Use POSIX-compliant
data types on n32 and n64.