include: drivers: gpio: Turn functions generic - esp32 On 'drivers/i2c_esp32.c' there are functions useful for other drivers. Functions and struct went moved to: * arch/xtensa/soc/esp32/peripheral.h * arch/xtensa/soc/esp32/soc.h * include/drivers/gpio/gpio_esp32.h Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>