Power management fixes for 6.2-rc4

 - Fix cpufreq policy reference counting in amd-pstate to prevent it
   from crashing on removal (Perry Yuan).

 - Fix double initialization and set suspend-freq for Apple's cpufreq
   driver (Arnd Bergmann, Hector Martin).

 - Fix reading of "reg" property, update cpufreq-dt's blocklist and
   update DT documentation for Qualcomm's cpufreq driver (Konrad Dybcio,
   Krzysztof Kozlowski).

 - Replace 0 with NULL in the Armada cpufreq driver (Miles Chen).

 - Fix potential overflows in the CPPC cpufreq driver (Pierre Gondois).

 - Update blocklist for the Tegra234 Soc cpufreq driver (Sumit Gupta).
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