Power Profiles Daemon module shows driver as multiple instead of actual driver

The actual driver in use is `intel_pstate` but the module shows it as `multiple`
```bash
powerprofilesctl list
  performance:
    CpuDriver:	intel_pstate
    PlatformDriver:	platform_profile
    Degraded:   no

  balanced:
    CpuDriver:	intel_pstate
    PlatformDriver:	platform_profile

* power-saver:
    CpuDriver:	intel_pstate
    PlatformDriver:	platform_profile
```