clockevents/drivers/qcom: Migrate to new 'set-state' interface
Migrate qcom driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Periodic mode isn't supported by the driver and so the callback isn't
provided anymore.
Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Kumar Gala <galak@codeaurora.org> Cc: Andy Gross <agross@codeaurora.org> Cc: David Brown <davidb@codeaurora.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Stephen Boyd <sboyd@codeaurora.org>