linker: esp32: fix IRAM length for mcuboot

When MCUBoot is enabled, IRAM region needs to be set
to a smaller value to avoid overlapping. This shall be re-worked
when MCUboot build for ESP32 is performed in Zephyr environment.

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>
1 file changed