Fix conversion of enum's in Kotlin

packages/react-native/android/src/main/java/com/breezliquidsdk/BreezLiquidSDKMapper.kt

@@ -375,7 +375,7 @@ fun asSendPaymentResponseList(arr: ReadableArray): List<SendPaymentResponse> {
 }
 
 fun asNetwork(type: String): Network {
-    return Network.valueOf(type.uppercase())
+    return Network.valueOf(camelToUpperSnakeCase(type))
 }
 
 fun asNetworkList(arr: ReadableArray): List<Network> {
@@ -498,3 +498,8 @@ fun errUnexpectedType(typeName: String): String {
 fun errUnexpectedValue(fieldName: String): String {
     return "Unexpected value for optional field $fieldName"
 }
+
+fun camelToUpperSnakeCase(str: String): String {
+    val pattern = "(?<=.)[A-Z]".toRegex()
+    return str.replace(pattern, "_$0").uppercase()
+}