Revert "fix merge issue that broke GPU OC"

This reverts commit 7506f018de4b5ba3468be26292ea04db65ed2276.
Revert "set default back to 400 (oops) and fix a frequency list typo (oops again)"

This reverts commit d9325dad1e1a7e50e65c52726cc3671ec085438a.
Revert "add 400MHz back (TY Tk-Glitch)"

This reverts commit b3913b2fa312746842b718a2a5d1d72c251ae5ae.
Revert "msm: kgsl: added GPU Overclock up to 627MHz."

This reverts commit 1104c992fb83f239a6488a53c5d316555183283a.
remove last old overclock remnants
add 450MHz and 533MHz GPU OC based on DoomLoRD's work