Revert "Update default CPU clock"

This reverts commit af7e6a7f0b83cd7eaf326442266470385b36b7cf.
Revert "cpu voltage fix"

This reverts commit 376116252cf8fe94374718d16c66823536765d1b.
Revert "CPU OC/UC 192000-1728000"

This reverts commit 50e8cae170dacc9ed87d5d9e7278c58946e74935.