Fix the handling of of the kernel change from "quiet" to "low-power"

A coming kernel change will convert "quiet" to "low-power" due to how
platform_profile can now have multiple registered handlers.
(kernel 6.14 est)

Fixes #609

rog-platform/src/cpu.rs

@@ -207,6 +207,7 @@ impl From<PlatformProfile> for CPUEPP {
             PlatformProfile::Balanced => CPUEPP::BalancePerformance,
             PlatformProfile::Performance => CPUEPP::Performance,
             PlatformProfile::Quiet => CPUEPP::Power,
+            PlatformProfile::LowPower => CPUEPP::Power,
         }
     }
 }