tlp suspend/resume: skip non-existent radio devices

tlp suspend/resume: do not persist bluetooth state if system76-driver is installed

changelog

tlp.conf: document ASPM default

Merge pull request #874 from Mylinde/feature/pcie-aspm-sav-profile

Merge pull request #873 from ClosedPort22/patch-1

bat.d/lenovo: tlp-stat -b: fix missing line break

feat: Add PCIE_ASPM_ON_SAV parameter for power-saver profile

Fix INTEL_GPU_POWER_PROFILE_* not working for GPU with multiple gtX

changelog

tlp.conf: explain TLP_AUTO_SWITCH depending on TLP_PROFILE_AC/BAT

INTEL_GPU_POWER_PROFILE_ON_BAT: change default to power_saving

tlp.conf: clarity

changelog

unit-tests/test-disabled-defaults.sh: config must not include CPU_ENERGY_PERF_POLICY_ON_AC/BAT/SAV