stm32f7: enable existing syscfg headers

include/libopencm3/stm32/f7/syscfg.h

@@ -0,0 +1,36 @@
+/** @defgroup syscfg_defines SYSCFG Defines
+ *
+ * @ingroup STM32F7xx_defines
+ *
+ * @brief Defined Constants and Types for the STM32F7xx Sysconfig
+ *
+ * @version 1.0.0
+ *
+ * @date 11 April 2019
+ *
+ * LGPL License Terms @ref lgpl_license
+ *  */
+
+/*
+ * 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_SYSCFG_H
+#define LIBOPENCM3_SYSCFG_H
+
+#include <libopencm3/stm32/common/syscfg_common_l1f234.h>
+
+#endif

include/libopencm3/stm32/syscfg.h

@@ -28,6 +28,8 @@
 #       include <libopencm3/stm32/f3/syscfg.h>
 #elif defined(STM32F4)
 #       include <libopencm3/stm32/f4/syscfg.h>
+#elif defined(STM32F7)
+#       include <libopencm3/stm32/f7/syscfg.h>
 #elif defined(STM32L0)
 #       include <libopencm3/stm32/l0/syscfg.h>
 #elif defined(STM32L1)