STM32H7: fix DUAL_PAD value to avoid ALTx conflict

Author: leonardocavagnis

targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/TARGET_NUCLEO_H723ZG/PinNames.h

@@ -27,7 +27,7 @@
 extern "C" {
 #endif
 
-#define DUAL_PAD 0xF00
+#define DUAL_PAD 0x800
 
 typedef enum {
     ALT0  = 0x100,

targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H743xI/TARGET_NUCLEO_H743ZI2/PinNames.h

@@ -27,7 +27,7 @@
 extern "C" {
 #endif
 
-#define DUAL_PAD 0xF00
+#define DUAL_PAD 0x800
 
 typedef enum {
     ALT0  = 0x100,

targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H747xI/TARGET_DISCO_H747I/PinNames.h

@@ -27,7 +27,7 @@
 extern "C" {
 #endif
 
-#define DUAL_PAD 0xF00
+#define DUAL_PAD 0x800
 
 typedef enum {
     ALT0  = 0x100,

targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H747xI/TARGET_GIGA/PinNames.h

@@ -43,7 +43,7 @@
 extern "C" {
 #endif
 
-#define DUAL_PAD 0xF00
+#define DUAL_PAD 0x800
 
 typedef enum {
     ALT0  = 0x100,

targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H747xI/TARGET_OPTA/PinNames.h

@@ -43,7 +43,7 @@
 extern "C" {
 #endif
 
-#define DUAL_PAD 0xF00
+#define DUAL_PAD 0x800
 
 typedef enum {
     ALT0  = 0x100,

targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H747xI/TARGET_PORTENTA_H7/PinNames.h

@@ -43,7 +43,7 @@
 extern "C" {
 #endif
 
-#define DUAL_PAD 0xF00
+#define DUAL_PAD 0x800
 
 typedef enum {
     ALT0  = 0x100,

targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H747xI/TARGET_PORTENTA_X8/PinNames.h

@@ -43,7 +43,7 @@
 extern "C" {
 #endif
 
-#define DUAL_PAD 0xF00
+#define DUAL_PAD 0x800
 
 typedef enum {
     ALT0  = 0x100,

targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H7A3xIQ/TARGET_NUCLEO_H7A3ZI_Q/PinNames.h

@@ -27,7 +27,7 @@
 extern "C" {
 #endif
 
-#define DUAL_PAD 0xF00
+#define DUAL_PAD 0x800
 
 typedef enum {
     ALT0  = 0x100,