Documentation: cpu-freq: cpu-drivers: Fix repetition of word 'to'

The patch replaces 'to to' with 'to' in the documentation.
Signed-off-by: sayli karnik <karniksayli1995@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/cpu-freq/cpu-drivers.txt

@@ -231,7 +231,7 @@ the reference implementation in drivers/cpufreq/longrun.c
 Only for drivers with target_index() and CPUFREQ_ASYNC_NOTIFICATION unset.
 
 get_intermediate should return a stable intermediate frequency platform wants to
-switch to, and target_intermediate() should set CPU to to that frequency, before
+switch to, and target_intermediate() should set CPU to that frequency, before
 jumping to the frequency corresponding to 'index'. Core will take care of
 sending notifications and driver doesn't have to handle them in
 target_intermediate() or target_index().