platform-profile: Handle "cool" platform_profile

Handle "cool" platform_profile the same way we do "low-power". This fixes the platform_profile driver not being probed successfully with the new HP WMI driver.

See https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/commit/?h=for-next&id=4296f679ca50f97c4973715f1e9e72357d2eb251

Closes: #20 (closed)