Add KPrepublic BM16A v2 (#19194)

keyboards/kprepublic/bm16a/v2/config.h

@@ -0,0 +1,12 @@
+// Copyright 2022 fauxpark (@fauxpark)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#define RGB_DI_PIN B9
+#define RGB_MATRIX_LED_COUNT 16
+
+#define WS2812_PWM_DRIVER PWMD4
+#define WS2812_PWM_CHANNEL 4
+#define WS2812_DMA_STREAM STM32_DMA1_STREAM7
+#define WS2812_DMA_CHANNEL 7