Add operating points for running the Cortex-A57 CPU cores on R-Car
H3e-2G, M3e-2G, and M3Ne-2G at 2 GHz.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/08a0f27f50b8ad4a78c05186190bebcfb364fe8f.1634200489.git.geert+renesas@glider.be