Revert "Fixed a typo"

This reverts commit 72ccfd68781badadcce9f2c7088c162ddde3e480.
Revert "Revert from lower GPU voltage and re-enabled OPP50 to SR"

This reverts commit 9019bebcb048fe64754960eb831c001617591045.
Revert "Making custom voltage an option"

This reverts commit 15fed477dc9e9f15869b18436da49ab4d510d944.
Revert "opp4xxx_data: Fixed wrong voltage definition"

This reverts commit 2cd207f7bcbeec31fd7760d85960a8389ddf0877.
Revert "custom voltage: fixed missing #endif"

This reverts commit 78dedf26ed3cac5ca891371a22b96940e30e79f3.
Revert "Added Custom Voltage Extension and decreased GPU voltages"

This reverts commit 181c511cf61198edac64d4ba231c53c9c8e6d27f.