Add mISDN core files

Add mISDN core files

Signed-off-by: Karsten Keil <kkeil@suse.de>
diff --git a/drivers/isdn/mISDN/Kconfig b/drivers/isdn/mISDN/Kconfig
new file mode 100644
index 0000000..231bd0d
--- /dev/null
+++ b/drivers/isdn/mISDN/Kconfig
@@ -0,0 +1,9 @@
+#
+# modularer ISDN driver
+#
+
+menuconfig MISDN
+	tristate "Modular ISDN driver"
+	help
+	  Enable support for the modular ISDN driver.
+