configure ulp-riscv
| COCPU_CLK_FO | cocpu clk force on |
| COCPU_START_2_RESET_DIS | time from start cocpu to pull down reset |
| COCPU_START_2_INTR_EN | time from start cocpu to give start interrupt |
| COCPU_SHUT | to shut cocpu |
| COCPU_SHUT_2_CLK_DIS | time from shut cocpu to disable clk |
| COCPU_SHUT_RESET_EN | to reset cocpu |
| COCPU_SEL | 1: old ULP 0: new riscV |
| COCPU_DONE_FORCE | 1: select riscv done 0: select ulp done |
| COCPU_DONE | done signal used by riscv to control timer. |
| COCPU_SW_INT_TRIGGER | trigger cocpu register interrupt |
| COCPU_CLKGATE_EN | open ulp-riscv clk gate |