include/backlight.h: Format with clang-format
BRANCH=none
TEST=none
#ifdef CONFIG_BACKLIGHT_REQ_GPIO
void backlight_interrupt(enum gpio_signal signal);
#else
-static inline void backlight_interrupt(enum gpio_signal signal) { }
+static inline void backlight_interrupt(enum gpio_signal signal)
+{
+}
#endif /* !CONFIG_BACKLIGHT_REQ_GPIO */
/**
