Change milkV duo pin mapping to physical mapping.

[erhnam]

Hi, I have been working with the milkv duo board and it has been difficult to understand the pin mapping.

I propose to change the physical nomenclature that appears in the datasheet. It is more understandable from the user's point of view.

I tried to create a branch and upload the changes but I don't have authorization, I add the new mapping.

static int map[] = {
/*| Pin  |   BCM  | GPIO LABEL	|	*/
/* --------------------------------- */
    88,   //  0 - XGPIOC[24] LED
    28,   //  1 - XGPIOA[28]
    29,   //  2 - XGPIOA[29]
    -1,   //  3 - N/A
    122,  //  4 - XGPIOA[26]
    121,  //  5 - XGPIOA[25]
    115,  //  6 - XGPIOA[19]
    116,  //  7 - XGPIOA[20]
    -1,   //  8 - N/A
    119,  //  9 - XGPIOA[23]
    118,  // 10 - XGPIOA[22]
    117,  // 11 - XGPIOA[21]
    114,  // 12 - XGPIOA[18]
    -1,   // 13 - N/A
    73,   // 14 - XGPIOC[9]
    74,   // 15 - XGPIOC[10]
    16,   // 16 - XGPIOA[16]
    17,   // 17 - XGPIOA[17]
    -1,   // 18 - N/A
    14,   // 19 - XGPIOA[14]
    15,   // 20 - XGPIOA[15]
    23,   // 21 - XGPIOA[23]
    24,   // 22 - XGPIOA[24]
    -1,   // 23 - N/A
    22,   // 24 - XGPIOA[22]
    25,   // 25 - XGPIOA[25]
    27,   // 26 - XGPIOA[27]
    26,   // 27 - XGPIOA[26] 
    -1,   // 28 - N/A
    100,  // 29 - PWR_GPIO[4]
    -1,   // 30 - N/A
    35,   // 31 - XGPIOB[3] ADC1
    38,   // 32 - XGPIOB[6] ADC2
};

Best regards