Revert "kbuild: drop cpuinit/cpuexit checks in modpost"

This reverts commit fc50bbd063c4845869777c7fa6e53ae50db79ea1.
Revert "drivers/thermal: Add 3-phase in kernel thermal management"

This reverts commit 3c0ca0c8c07be31a1c21a1c219de29bf29fa6ca9.