stm32f7: enable existing dma2d headers

include/libopencm3/stm32/f7/dma2d.h

@@ -0,0 +1,30 @@
+/** @defgroup dma2d_defines DMA2D Defines
+ * @brief <b>Defined Constants and Types for the STM32F7xx DMA2D Peripheral</b>
+ * @ingroup STM32F7xx_defines
+ */
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/**@{*/
+
+#ifndef LIBOPENCM3_STM32_F7_DMA2D_H_
+#define LIBOPENCM3_STM32_F7_DMA2D_H_
+
+#include <libopencm3/stm32/common/dma2d_common_f47.h>
+
+#endif /* LIBOPENCM3_STM32_F7_DMA2D_H_ */
+
+/**@}*/