arm64: dts: renesas: r8a774b1: Add OPPs table for cpu devices

This patch adds OPPs table for CA57{0,1} cpu devices.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Link: https://lore.kernel.org/r/1569250648-33857-2-git-send-email-biju.das@bp.renesas.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>