[PATCH 1/6] fs: add timespec64_truncate()

As vfs moves to using struct timespec64 to represent times, update the argument to timespec_truncate() to use struct timespec64. Also change the name of the function. The rest of the implementation logic is the same. Move this to fs/inode.c instead of kernel/time/time.c as all the users of this

[PATCH 1/6] fs: add timespec64_truncate()

As vfs moves to using struct timespec64 to represent times, update the argument to timespec_truncate() to use struct timespec64. Also change the name of the function. The rest of the implementation logic is the same. Move this to fs/inode.c instead of kernel/time/time.c as all the users of this