Revert "drm/amd/pm: resolve reboot exception for si oland"
In the Linux kernel, the following vulnerability has been resolved:

Revert "drm/amd/pm: resolve reboot exception for si oland"

This reverts commit e490d60a2f76bff636c68ce4fe34c1b6c34bbd86.

This causes hangs on SI when DC is enabled and errors on driver
reboot and power off cycles.