hostapd: Allow hostapd_cli to work on Android

Add definitions of the Android specific directories used for control
interface sockets so that hostapd_cli can connect to the Android
hostapd.

Change-Id: Iabcd8d70ef61fae6656066991240d55e65a032e4
diff --git a/hostapd/hostapd_cli.c b/hostapd/hostapd_cli.c
index aed981c..27bea2a 100644
--- a/hostapd/hostapd_cli.c
+++ b/hostapd/hostapd_cli.c
@@ -93,7 +93,12 @@
 static struct wpa_ctrl *ctrl_conn;
 static int hostapd_cli_quit = 0;
 static int hostapd_cli_attached = 0;
-static const char *ctrl_iface_dir = "/var/run/hostapd";
+
+#ifndef CONFIG_CTRL_IFACE_DIR
+#define CONFIG_CTRL_IFACE_DIR "/var/run/hostapd"
+#endif /* CONFIG_CTRL_IFACE_DIR */
+static const char *ctrl_iface_dir = CONFIG_CTRL_IFACE_DIR;
+
 static char *ctrl_ifname = NULL;
 static const char *pid_file = NULL;
 static const char *action_file = NULL;