Change default baud rate

Not all modules support 9600, 115200 is a better default

Author: sfe-SparkFro

examples/Example1_DeviceIdentification/Example1_DeviceIdentification.ino

@@ -63,7 +63,7 @@ void setup()
   myModule.invertPowerPin(true); 
 
   // Initialize the SARA
-  if (myModule.begin(mySerial, 9600) )
+  if (myModule.begin(mySerial, UBX_CELL_DEFAULT_BAUD_RATE) )
   {
     Serial.println(F("SARA-R5 connected!"));
   }

src/sfe_ublox_cellular.h

@@ -646,9 +646,9 @@ class UBX_CELL : public Print
   ~UBX_CELL();
   // Begin -- initialize module and ensure it's connected
 #ifdef UBX_CELL_SOFTWARE_SERIAL_ENABLED
-  bool begin(SoftwareSerial &softSerial, unsigned long baud = 9600);
+  bool begin(SoftwareSerial &softSerial, unsigned long baud = UBX_CELL_DEFAULT_BAUD_RATE);
 #endif
-  bool begin(HardwareSerial &hardSerial, unsigned long baud = 9600);
+  bool begin(HardwareSerial &hardSerial, unsigned long baud = UBX_CELL_DEFAULT_BAUD_RATE);
 
   // Debug prints
   void enableDebugging(Print &debugPort = Serial); //Turn on debug printing. If user doesn't specify then Serial will be used.