Fix abbreviations of Litre/min and milliLitre/min (#14114)

public/app/core/utils/kbn.ts

@@ -584,8 +584,8 @@ kbn.valueFormats.flowcms = kbn.formatBuilders.fixedUnit('cms');
 kbn.valueFormats.flowcfs = kbn.formatBuilders.fixedUnit('cfs');
 kbn.valueFormats.flowcfm = kbn.formatBuilders.fixedUnit('cfm');
 kbn.valueFormats.litreh = kbn.formatBuilders.fixedUnit('l/h');
-kbn.valueFormats.flowlpm = kbn.formatBuilders.decimalSIPrefix('L');
-kbn.valueFormats.flowmlpm = kbn.formatBuilders.decimalSIPrefix('L', -1);
+kbn.valueFormats.flowlpm = kbn.formatBuilders.decimalSIPrefix('l/min');
+kbn.valueFormats.flowmlpm = kbn.formatBuilders.decimalSIPrefix('mL/min', -1);
 
 // Angle
 kbn.valueFormats.degree = kbn.formatBuilders.fixedUnit('°');