Fix Type in Example17_NTRIPClient_With_GGA_Callback.ino

GNSS + Dead Reckoning is Fix Type 4, not Fix Type 3.  See page 104 of https://content.u-blox.com/sites/default/files/documents/u-blox-F9-HPG-1.32_InterfaceDescription_UBX-22008968.pdf

Author: niabassey

examples/ZED-F9P/Example17_NTRIPClient_With_GGA_Callback/Example17_NTRIPClient_With_GGA_Callback.ino

@@ -115,7 +115,7 @@ void printPVTdata(UBX_NAV_PVT_data_t *ubxDataStruct)
     Serial.print(F(" (2D)"));
   else if (fixType == 3)
     Serial.print(F(" (3D)"));
-  else if (fixType == 3)
+  else if (fixType == 4)
     Serial.print(F(" (GNSS + Dead Reckoning)"));
   else if (fixType == 5)
     Serial.print(F(" (Time Only)"));