powerpc/time: Fix tracing in time.c

[Michael Ellerman]

On Tue, 2017-06-20 at 07:44:47 UTC, Santosh Sivaraj wrote:
> Since trace_clock is in a different file and already marked with notrace,
> enable tracing in time.c by removing it from the disabled list in Makefile.
> Also annotate clocksource read functions and sched_clock with notrace.
> 
> Testing: Timer and ftrace selftests run with different trace clocks.
> 
> Acked-by: Naveen N. Rao <naveen.n.rao at linux.vnet.ibm.com>
> Signed-off-by: Santosh Sivaraj <santosh at fossix.org>

Applied to powerpc next-test, thanks.

https://git.kernel.org/powerpc/c/6b847d795cf4ab3e574f4fcf7193fe

cheers