[SX126x] Fixed incorrect sync word in comments

examples/SX126x/SX126x_Channel_Activity_Detection/SX126x_Channel_Activity_Detection.ino

@@ -35,7 +35,7 @@ void setup() {
   // bandwidth:                   125.0 kHz
   // spreading factor:            9
   // coding rate:                 7
-  // sync word:                   0x1424 (private network)
+  // sync word:                   0x12 (private network)
   // output power:                14 dBm
   // current limit:               60 mA
   // preamble length:             8 symbols

examples/SX126x/SX126x_Receive/SX126x_Receive.ino

@@ -40,7 +40,7 @@ void setup() {
   // bandwidth:                   125.0 kHz
   // spreading factor:            9
   // coding rate:                 7
-  // sync word:                   0x1424 (private network)
+  // sync word:                   0x12 (private network)
   // output power:                14 dBm
   // current limit:               60 mA
   // preamble length:             8 symbols

examples/SX126x/SX126x_Receive_Interrupt/SX126x_Receive_Interrupt.ino

@@ -41,7 +41,7 @@ void setup() {
   // bandwidth:                   125.0 kHz
   // spreading factor:            9
   // coding rate:                 7
-  // sync word:                   0x1424 (private network)
+  // sync word:                   0x12 (private network)
   // output power:                14 dBm
   // current limit:               60 mA
   // preamble length:             8 symbols

examples/SX126x/SX126x_Settings/SX126x_Settings.ino

@@ -51,7 +51,7 @@ void setup() {
   // bandwidth:                   125.0 kHz
   // spreading factor:            9
   // coding rate:                 7
-  // sync word:                   0x1424 (private network)
+  // sync word:                   0x12 (private network)
   // output power:                14 dBm
   // current limit:               60 mA
   // preamble length:             8 symbols
@@ -76,7 +76,7 @@ void setup() {
   // bandwidth:                   500.0 kHz
   // spreading factor:            6
   // coding rate:                 5
-  // sync word:                   0x3444 (public network)
+  // sync word:                   0x34 (public network)
   // output power:                2 dBm
   // current limit:               50 mA
   // preamble length:             20 symbols

examples/SX126x/SX126x_Transmit_Interrupt/SX126x_Transmit_Interrupt.ino

@@ -36,7 +36,7 @@ void setup() {
   // bandwidth:                   125.0 kHz
   // spreading factor:            9
   // coding rate:                 7
-  // sync word:                   0x1424 (private network)
+  // sync word:                   0x12 (private network)
   // output power:                14 dBm
   // current limit:               60 mA
   // preamble length:             8 symbols