wpa_supplicant: new package

Patch by Gustavo Zacarias <gustavo@zacarias.com.br>

Closes #81.
diff --git a/package/Config.in b/package/Config.in
index 59d2a43..07d72c0 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -218,6 +218,7 @@
 source "package/wget/Config.in"
 endif
 source "package/wireless-tools/Config.in"
+source "package/wpa_supplicant/Config.in"
 
 endmenu