cpufreq: Initialize cpufreq-based frequency-invariance later

The cpufreq-based invariance is enabled in cpufreq_register_driver(),
but never disabled after registration fails. Move the invariance
initialization to where all other initializations have been successfully
done to solve this problem.

Fixes: 874f6353 ("cpufreq: report whether cpufreq supports Frequency Invariance (FI)")
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Link: https://patch.msgid.link/20250709104145.2348017-2-zhenglifeng1@huawei.com


[ rjw: New subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>