Fix a typo in ssd1306 driver that prevents compiling with c++ compiler
Fix a typo in ssd1306 driver that prevents compiling with c++ compiler

ourairquality/esp-open-rtos,UncleRus/esp-open-rtos,ourairquality/esp-open-rtos,urx/esp-open-rtos,UncleRus/esp-open-rtos,ourairquality/esp-open-rtos,SuperHouse/esp-open-rtos,UncleRus/esp-open-rtos,ourairquality/esp-open-rtos,Zaltora/esp-open-rtos,urx/esp-open-rtos,SuperHouse/esp-open-rtos,Zaltora/esp-open-rtos,Zaltora/esp-open-rtos,bhuvanchandra/esp-open-rtos,bhuvanchandra/esp-open-rtos,urx/esp-open-rtos,urx/esp-open-rtos,Zaltora/esp-open-rtos,ourairquality/esp-open-rtos,UncleRus/esp-open-rtos,SuperHouse/esp-open-rtos,bhuvanchandra/esp-open-rtos,ourairquality/esp-open-rtos,UncleRus/esp-open-rtos,urx/esp-open-rtos,SuperHouse/esp-open-rtos,Zaltora/esp-open-rtos,SuperHouse/esp-open-rtos,Zaltora/esp-open-rtos,SuperHouse/esp-open-rtos,urx/esp-open-rtos,UncleRus/esp-open-rtos,bhuvanchandra/esp-open-rtos