boards/maple-mini: model features in Kconfig

boards/maple-mini/Kconfig

@@ -0,0 +1,20 @@
+# Copyright (c) 2020 Inria
+#
+# This file is subject to the terms and conditions of the GNU Lesser
+# General Public License v2.1. See the file LICENSE in the top level
+# directory for more details.
+#
+
+config BOARD
+    default "maple-mini" if BOARD_MAPLE_MINI
+
+config BOARD_MAPLE_MINI
+    bool
+    default y
+    select CPU_MODEL_STM32F103CB
+
+    # Put defined MCU peripherals here (in alphabetical order)
+    select HAS_PERIPH_I2C
+    select HAS_PERIPH_SPI
+    select HAS_PERIPH_TIMER
+    select HAS_PERIPH_UART