There are some register description errors in parts of rom/gpio.h
This commit update the incorrect comments in rom/gpio.h And now
esp_rom_gpio.h is recommend instead of rom/gpio.h. So this commit adds
macro SIG_GPIO_OUT_IDX in esp_rom_gpio_connect_out_signal
function and removes the reference to gpio.h in some source files.
Closes https://github.com/espressif/esp-idf/issues/11737
Eliminate UT_T1_GPIO runner requirement by routing internally through gpio matrix and by setting gpio pins to GPIO_MODE_INPUT_OUTPUT mode for all interrupt related test cases.
