ar100: Support for ar100 (#6054)

Add files to support AR100

Signed-off-by: Elias Bakken <elias@iagent.no>

src/ar100/Kconfig

@@ -0,0 +1,21 @@
+# Kconfig settings for AR100
+
+if MACH_AR100
+
+config AR100_SELECT
+    bool
+    default y
+    select HAVE_GPIO
+    select HAVE_GPIO_SPI
+    select HAVE_GPIO_BITBANGING
+    select HAVE_STEPPER_BOTH_EDGE
+
+config BOARD_DIRECTORY
+    string
+    default "ar100"
+
+config CLOCK_FREQ
+    int
+    default 300000000
+
+endif