nmea_status parsing throws nil pointer exception

This is a clone of issue OCPBUGS-27053. The following is the description of the original issue:
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cloud event proxy log show null pointer exception 

ime="2024-01-12T04:02:46Z" level=error msg="restored from extract metrics and events: runtime error: invalid memory address or nil pointer dereference"
time="2024-01-12T04:02:46Z" level=error msg="failed to extract ts2phc[1705032166]:[ts2phc.0.config] ens2fx nmea_status 1 offset 0 s2"
time="2024-01-12T04:02:46Z" level=info msg="depends on end Depending Process (key): GM\nIFace ens2f0\nClockSource GM\nProcess GM\n\n"