The GPIO_LEDx are already used by esp32_userleds.c, they shouldn't
be used by esp32_gpio.c. This patch also includes the GPIO Input
example (GPIN) that was missing.
interrupts.
This example uses the GPIO driver with the 3 on board LEDs outputs and one input
as an interrupt pin.
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
