Update Environment Variable Normalization to not add DD prefix for OTel Configs (#11044)

init

Merge branch 'master' into mhlidd/telemetry_otel_handling

moving normalization to ConfigSetting

Merge branch 'master' into mhlidd/telemetry_otel_handling

Co-authored-by: devflow.devflow-routing-intake <devflow.devflow-routing-intake@kubernetes.us1.ddbuild.io>

Author: mhlidd

utils/config-utils/src/main/java/datadog/trace/api/ConfigSetting.java

@@ -1,6 +1,7 @@
 package datadog.trace.api;
 
 import static datadog.trace.util.ConfigStrings.propertyNameToEnvironmentVariableName;
+import static datadog.trace.util.ConfigStrings.toEnvVar;
 
 import java.util.Arrays;
 import java.util.BitSet;
@@ -53,6 +54,10 @@ private ConfigSetting(String key, Object value, ConfigOrigin origin, int seqId,
   }
 
   public String normalizedKey() {
+    // OTel configurations should not be normalized with DD_
+    if (key.startsWith("otel.") || key.startsWith("OTEL_")) {
+      return toEnvVar(key);
+    }
     return propertyNameToEnvironmentVariableName(key);
   }