Revert "cmdline_gpuoc: switch to early param"

This reverts commit a25cd463b461f5bfbce9f4b1b1fc0ec30ea63693.
Revert "cmdline: add gpuoc interface"

This reverts commit 444f3b7923e6f9e7c126a4771af455a512e5ad24.
Revert "mach-tegra: fix gpuoc timings"

This reverts commit abb5b4b13f3683193f9e5f94be2ae86322cd9840.