add support for PortentaH7+GIGA Display in H7_Video library

Author: leonardocavagnis

libraries/H7_Video/examples/ArduinoLogo/ArduinoLogo.ino

@@ -17,7 +17,7 @@
 INCBIN(test, "/home/user/Downloads/test.bin");
 */
 
-H7_Video Display(480, 800);
+H7_Video Display(480, 800, GIGA_DISPLAY_SHIELD);
 
 void setup() {
   Display.begin();

libraries/H7_Video/examples/ArduinoLogoDrawing/ArduinoLogoDrawing.ino

@@ -8,7 +8,7 @@
 #include "ArduinoGraphics.h"
 #include "H7_Video.h" // H7_Video depends on ArduinoGraphics
 
-H7_Video Display(480, 800);
+H7_Video Display(480, 800, GIGA_DISPLAY_SHIELD);
 
 void setup() {
   Display.begin();

libraries/H7_Video/examples/LVGLDemo/LVGLDemo.ino

@@ -2,7 +2,7 @@
 #include "lvgl.h"
 #include "giga_touch.h"
 
-H7_Video Display(480,800);
+H7_Video Display(480, 800, GIGA_DISPLAY_SHIELD);
 
 //@TODO: Complete demo with 4 main features
 

libraries/H7_Video/examples/LVGLDemo/giga_touch.cpp

@@ -13,7 +13,6 @@ REDIRECT_STDOUT_TO(Serial);
 #endif
 
 #ifdef ARDUINO_PORTENTA_H7_M7
-#define Wire Wire2
 #define INT_PIN PinNameToIndex(PD_4)
 #define RST_PIN PinNameToIndex(PD_5)
 #endif
@@ -36,7 +35,7 @@ void handleTouch(int8_t contacts, GTPoint *points) {
 }
 
 void touchStart() {
-  if (touch.begin(INT_PIN, RST_PIN, 0xDD) != true) {
+  if (touch.begin(Wire, INT_PIN, RST_PIN, 0xDD) != true) {
     Serial.println("! Module reset failed");
   } else {
     Serial.println("Module reset OK");

libraries/H7_Video/src/H7_Video.cpp

@@ -35,7 +35,8 @@ int H7_Video::begin(bool landscape) {
     if (_shield == NONE_SHIELD) {
         portenta_init_video();
     } else if (_shield == GIGA_DISPLAY_SHIELD) {
-        //@TODO Init portenta w/o ANX
+        giga_init_video(); 
+        LCD_ST7701_Init();
     }
   #elif defined(ARDUINO_GIGA)
     giga_init_video(); 

libraries/H7_Video/src/display.cpp

@@ -207,7 +207,7 @@ do {                \
 
 void LCD_ST7701_Init(void)
 {
-  pinMode(PD_3, OUTPUT);
+  pinMode(PD_3, OUTPUT); //Microphone PDM CLK (?)
   digitalWrite(PD_3, HIGH);
 
   DCS_Short_Write_NP(MIPI_DCS_SOFT_RESET);