51Degrees module: update devicetype mapping. (prebid#3978)

Author: justadreamer

extra/modules/fiftyone-devicedetection/src/main/java/org/prebid/server/hooks/modules/fiftyone/devicedetection/v1/core/OrtbDeviceType.java

@@ -27,7 +27,7 @@ public enum OrtbDeviceType {
             Map.entry("Mobile", OrtbDeviceType.MOBILE_TABLET),
             Map.entry("Router", OrtbDeviceType.CONNECTED_DEVICE),
             Map.entry("SmallScreen", OrtbDeviceType.CONNECTED_DEVICE),
-            Map.entry("SmartPhone", OrtbDeviceType.MOBILE_TABLET),
+            Map.entry("SmartPhone", OrtbDeviceType.PHONE),
             Map.entry("SmartSpeaker", OrtbDeviceType.CONNECTED_DEVICE),
             Map.entry("SmartWatch", OrtbDeviceType.CONNECTED_DEVICE),
             Map.entry("Tablet", OrtbDeviceType.TABLET),