emulator mtime_l and mtime_h implementation request

[agm2920]

mtime_l and mtime_h implementation for emulator

caliptra-mcu-sw/registers/generated-emulator/src/mci.rs

Line 385 in 3a7234b

fn read_mci_reg_mcu_timer_config(&mut self) -> caliptra_emu_types::RvData {