Update cpu/atmega_common/Makefile.features

Co-authored-by: crasbe <[email protected]>

Author: maribu

cpu/atmega_common/Makefile.features

@@ -14,7 +14,8 @@ FEATURES_PROVIDED += periph_gpio_ll_irq_edge_triggered_both
 FEATURES_PROVIDED += periph_gpio_ll_irq_level_triggered_low
 FEATURES_PROVIDED += periph_gpio_ll_irq_unmask
 FEATURES_PROVIDED += periph_gpio_ll_switch_dir
-FEATURES_PROVIDED += periph_gpio periph_gpio_irq
+FEATURES_PROVIDED += periph_gpio
+FEATURES_PROVIDED += periph_gpio_irq
 FEATURES_PROVIDED += periph_pm
 FEATURES_PROVIDED += periph_rtc_ms
 FEATURES_PROVIDED += periph_rtt_overflow