[Backport v3.7.99-ncs1-branch] [nrf fromlist] drivers: timer: grtc: Add LFPRC as the source of GRTC#2233

rlubos merged 1 commit intov3.7.99-ncs1-branchnrfconnect/sdk-zephyr:v3.7.99-ncs1-branchfrom

backport-2200-to-v3.7.99-ncs1-branchnrfconnect/sdk-zephyr:backport-2200-to-v3.7.99-ncs1-branchCopy head branch name to clipboard