riscv: Allwinner D1 clock and reset driver

[mhorne]

Summary

Add the SOC_ALLWINNER_D1 config option, following other platforms.

There are still a couple of clocks marked TODO, notably the CPU clock
needed for cpufreq_dt(4). These will be added before commit.

Co-authored-by: mhorne

[mhorne]

Add clocks for CLK_RISCV, CLK_RISCV_AXI.

Double check the lists of CCU_GATE and CCU_RESET. Add some that were missing and reorder according to the IDs.