Add Pi Zero 2 to model list

Add Pi Zero 2 to model list

gpio/readall.c

@@ -313,6 +313,8 @@ static void plus2header (int model)
     printf (" +-----+-----+---------+------+---+---Pi 4B--+---+------+---------+-----+-----+\n") ;
   else if (model == PI_MODEL_400)
     printf (" +-----+-----+---------+------+---+---Pi 400-+---+------+---------+-----+-----+\n") ;
+  else if (model == PI_MODEL_ZERO2_W)
+    printf (" +-----+-----+---------+------+---+--Pi Zero2W---+------+---------+-----+-----+\n") ;
   else
     printf (" +-----+-----+---------+------+---+---Pi ?---+---+------+---------+-----+-----+\n") ;
 }
@@ -361,7 +363,7 @@ void doReadall (void)
 	(model == PI_MODEL_3AP)  ||
 	(model == PI_MODEL_3B)   || (model == PI_MODEL_3BP) ||
 	(model == PI_MODEL_4B)   || (model == PI_MODEL_400) ||
-	(model == PI_MODEL_ZERO) || (model == PI_MODEL_ZERO_W) || (model == PI_MODEL_CM4))
+	(model == PI_MODEL_ZERO) || (model == PI_MODEL_ZERO_W) || (model == PI_MODEL_CM4) || (model == PI_MODEL_ZERO2_W))
     piPlusReadall (model) ;
   else if ((model == PI_MODEL_CM) || (model == PI_MODEL_CM3) || (model == PI_MODEL_CM3P) )
     allReadall () ;

wiringPi/wiringPi.c

@@ -239,7 +239,7 @@ const char *piModelNames [21] =
   "Unknown15",	// 15
   "CM3+",	// 16
   "Pi 4B",	// 17
-  "Unknown18",	// 18
+  "Pi Zero2-W",	// 18
   "Pi 400",	// 19
   "CM4",	// 20
 } ;

wiringPi/wiringPi.h

@@ -99,6 +99,7 @@
 #define	PI_MODEL_ZERO		 9
 #define	PI_MODEL_CM3		10
 #define	PI_MODEL_ZERO_W		12
+#define PI_MODEL_ZERO2_W 18
 #define	PI_MODEL_3BP 		13
 #define	PI_MODEL_3AP 		14
 #define	PI_MODEL_CM3P 		16