enable PPP and DAHDI_MIRROR by default.

There's not really any reason to disable those, from what I can tell.

Change-Id: Ib03074062ada7b6da485afac53b1550d31f1a5ca

include/dahdi/dahdi_config.h

@@ -80,6 +80,7 @@
  * support.
  */
 #define CONFIG_DAHDI_NET
+#define CONFIG_DAHDI_PPP
 
 /*
  * Uncomment for Generic PPP support (i.e. DAHDIRAS)
@@ -187,7 +188,7 @@
 /*
  * Creates an interface for mirroring the raw channel data out to a pseudo-chan
  */
-/* #define CONFIG_DAHDI_MIRROR */
+#define CONFIG_DAHDI_MIRROR
 
 /*
  * Adds support for conference links. There are some non-Asterisk users of this