Revert "update"

This reverts commit e3bdb5dd674cd5d77ee5235952da7390913fb521.
FIX

Change-Id: I9675601eb0fd5085ad7209a10c6c482350c04354
Revert "gpu: OC to 600mhz"

This reverts commit 83bbd907d9a866c3cd89eeaed8c6a8d4405efa35.
gpu: OC to 487mhz instead.
600MHz just wasn't working nicely. It was most likely hindering our device.