Kernel: Mention right parent class for AC'97's device_name

Author: https://github.com/gmta
Commit: c530f74e2f
Pull-request: https://github.com/SerenityOS/serenity/pull/17798
Reviewed-by: https://github.com/kleinesfilmroellchen
Reviewed-by: https://github.com/supercomputer7 ✅

Kernel/Devices/Audio/AC97.h

@@ -30,9 +30,11 @@ public:
 
     virtual ~AC97() override;
 
+    // ^PCI::Device
+    virtual StringView device_name() const override { return "AC97"sv; }
+
     // ^IRQHandler
     virtual StringView purpose() const override { return "AC97"sv; }
-    virtual StringView device_name() const override { return purpose(); }
 
 private:
     enum NativeAudioMixerRegister : u8 {