timekeeping: Use timespec64 in timekeeping_inject_offset
As part of changing all the timekeeping code to use 64-bit
time_t consistently, this removes the uses of timeval
and timespec as much as possible from do_adjtimex() and
timekeeping_inject_offset(). The timeval_inject_offset_valid()
and timespec_inject_offset_valid() just complicate this,
so I'm folding them into the respective callers.
This leaves the actual 'struct timex' definition, which
is part of the user-space ABI and should be dealt with
separately when we have agreed on the ABI change.
Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Miroslav Lichvar <mlichvar@redhat.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Stephen Boyd <stephen.boyd@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: John Stultz <john.stultz@linaro.org>