Typo error in usb_desc.c for JOYSTICK_INTERFACE

[TimotheeCaussin]

When using the default 6 axis 32 buttons and 1 hat joystick I realized the second slider did not work correctly as 1 slider showed up as a simple axis and the second slider didn't show up at all.

I solved it by finding what seems to be a typo mistake in usb_desc.c (line 281) when defining the joystick interface.
joystick_report_desc should be defined as:

static uint8_t joystick_report_desc[] = {
        0x05, 0x01,                     // Usage Page (Generic Desktop)
        0x09, 0x04,                     // Usage (Joystick)
        0xA1, 0x01,                     // Collection (Application)
        0x15, 0x00,                     //   Logical Minimum (0)
        0x25, 0x01,                     //   Logical Maximum (1)
        0x75, 0x01,                     //   Report Size (1)
        0x95, 0x20,                     //   Report Count (32)
        0x05, 0x09,                     //   Usage Page (Button)
        0x19, 0x01,                     //   Usage Minimum (Button #1)
        0x29, 0x20,                     //   Usage Maximum (Button #32)
        0x81, 0x02,                     //   Input (variable,absolute)
        0x15, 0x00,                     //   Logical Minimum (0)
        0x25, 0x07,                     //   Logical Maximum (7)
        0x35, 0x00,                     //   Physical Minimum (0)
        0x46, 0x3B, 0x01,               //   Physical Maximum (315)
        0x75, 0x04,                     //   Report Size (4)
        0x95, 0x01,                     //   Report Count (1)
        0x65, 0x14,                     //   Unit (20)
        0x05, 0x01,                     //   Usage Page (Generic Desktop)
        0x09, 0x39,                     //   Usage (Hat switch)
        0x81, 0x42,                     //   Input (variable,absolute,null_state)
        0x05, 0x01,                     //   Usage Page (Generic Desktop)
        0x09, 0x01,                     //   Usage (Pointer)
        0xA1, 0x00,                     //   Collection ()
        0x15, 0x00,                     //     Logical Minimum (0)
        0x26, 0xFF, 0x03,               //     Logical Maximum (1023)
        0x75, 0x0A,                     //     Report Size (10)
        0x95, 0x04,                     //     Report Count (4)
        0x09, 0x30,                     //     Usage (X)
        0x09, 0x31,                     //     Usage (Y)
        0x09, 0x32,                     //     Usage (Z)
        0x09, 0x35,                     //     Usage (Rz)
        0x81, 0x02,                     //     Input (variable,absolute)
        0xC0,                           //   End Collection
        0x15, 0x00,                     //   Logical Minimum (0)
        0x26, 0xFF, 0x03,               //   Logical Maximum (1023)
        0x75, 0x0A,                     //   Report Size (10)
        0x95, 0x02,                     //   Report Count (2)
        0x09, 0x36,                     //   Usage (Slider)
        0x09, 0x37,                     //   Usage (Slider)
        0x81, 0x02,                     //   Input (variable,absolute)
        0xC0                            // End Collection
};

Replacing
0x09, 0x36, // Usage (Slider)
by
0x09, 0x37, // Usage (Slider) in the second slider.

I used the following basic code to send data and jtst-gtk to visualise the joystick.

void setup() {
  Serial.begin(9600);
}
int value=0;

void loop() {
  Joystick.sliderLeft(value);
  Joystick.sliderRight(value);
  value = value + 1;
  if (value>1023) value=0;
  Serial.println(value);
  delay(5);
}

This behaviour appeared under linux, ubuntu 18.04 with teensy card 3.2 but I do not believe it is important here.