Add BDN9 rev2 (#9017)

keyboards/keebio/bdn9/rev1/rev1.c

@@ -0,0 +1,18 @@
+#include "rev1.h"
+
+void eeconfig_init_kb(void) {
+#ifdef BACKLIGHT_ENABLE
+    backlight_enable();
+    backlight_level(5);
+#endif
+#ifdef RGBLIGHT_ENABLE
+    rgblight_enable(); // Enable RGB by default
+    rgblight_sethsv(0, 255, 255);  // Set default HSV - red hue, full saturation, full brightness
+#ifdef RGBLIGHT_ANIMATIONS
+    rgblight_mode(RGBLIGHT_MODE_RAINBOW_SWIRL + 2); // set to RGB_RAINBOW_SWIRL by default
+#endif
+#endif
+
+    eeconfig_update_kb(0);
+    eeconfig_init_user();
+}