[nrf fromlist] drivers: timer: nrf_grtc_timer: Optimize to reduce reg…#3344

anangl merged 2 commits intonrfconnect:mainnrfconnect/sdk-zephyr:mainfrom

nordic-krch:ncs/grtc_optnordic-krch/fw-nrfconnect-zephyr:ncs/grtc_optCopy head branch name to clipboard