Enable overall cpufreq boost before enabling per-policy boost

[valpackett]

On a Snapdragon laptop, just using the regular [cpu] boost=1 without extra system configuration (this is on postmarketOS) I get this:

2025-11-11 02:36:34,284 ERROR    tuned.utils.commands: Writing to file '/sys/devices/system/cpu/cpufreq/policy4/boost' error: '[Errno 22] Invalid argument'
2025-11-11 02:36:34,284 INFO     tuned.plugins.plugin_cpu: Setting boost value '1' for cpu 'cpu4'
2025-11-11 02:36:34,284 WARNING  tuned.plugins.plugin_cpu: Unable to set boost on cpu 'cpu10'. Neither per-policy boost nor intel_pstate no_turbo is available.
2025-11-11 02:36:34,284 WARNING  tuned.plugins.plugin_cpu: Unable to set boost on cpu 'cpu6'. Neither per-policy boost nor intel_pstate no_turbo is available.
[…]

Well… you first need to write 1 to /sys/devices/system/cpu/cpufreq/boost before touching the "inner" /sys/devices/system/cpu/cpufreq/policy*/boost ones!