power: supply: bq25890_charger: Don't report bogus voltage
Report a lack of reading instead of trying to interpret it as a voltage. Fixes bogus 2.304V readings when the battery is under voltage regulation.
Equivalent of !569 (merged)
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Report a lack of reading instead of trying to interpret it as a voltage. Fixes bogus 2.304V readings when the battery is under voltage regulation.
Equivalent of !569 (merged)