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cpufreq: Documentation: Update description of rate_limit_us default value

Due to commit 37c6dccd6837 ("cpufreq: Remove LATENCY_MULTIPLIER")
updating the acquisition logic of cpufreq_policy_transition_delay_us(),
the original description of 2 ms has become inaccurate.

Therefore, update the description of the default value for
rate_limit_us from 2ms to 1ms.

Signed-off-by: Yaxiong Tian <tianyaxiong@kylinos.cn>
[ rjw: Subject and changelog edits ]
Link: https://patch.msgid.link/20260203093501.1138721-1-tianyaxiong@kylinos.cn
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

authored by

Yaxiong Tian and committed by
Rafael J. Wysocki 3bd1cde3 1fedbb58

+1 -1
+1 -1
Documentation/admin-guide/pm/cpufreq.rst
··· 439 439 ``rate_limit_us`` 440 440 Minimum time (in microseconds) that has to pass between two consecutive 441 441 runs of governor computations (default: 1.5 times the scaling driver's 442 - transition latency or the maximum 2ms). 442 + transition latency or 1ms if the driver does not provide a latency value). 443 443 444 444 The purpose of this tunable is to reduce the scheduler context overhead 445 445 of the governor which might be excessive without it.