hwpstate_intel: Disable package control on hybrid CPU

In package control mode, the performance of all cores depends on the
most recent value written to the request field. If the last write comes
from an E-core, all cores are forced to align with the E-core
performance level, resulting in significant performance degradation.
Therefore, package control is disabled on hybrid-core systems.

Reviewed by: olce
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Sponsored by: Framework Computer Inc
Differential Revision: https://reviews.freebsd.org/D57377