DEVELOPERS: change developer for wpa_supplicant

The wpa_supplicant was in fact no introduced by Peter, but by Gustavo,
and Gustavo is much more active in maintaining this package, so let's
mention Gustavo as the developer for this package.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

DEVELOPERS

@@ -718,6 +718,7 @@ F:	package/webkitgtk/
 F:	package/webkitgtk24/
 F:	package/whois/
 F:	package/wireshark/
+F:	package/wpa_supplicant/
 F:	package/wpan-tools/
 F:	package/x11r7/xdriver_xf86-video-qxl/
 F:	package/xtables-addons/
@@ -1147,7 +1148,6 @@ F:	package/python-ipaddr/
 F:	package/python-pam/
 F:	package/python-psutil/
 F:	package/triggerhappy/
-F:	package/wpa_supplicant/
 
 N:	Peter Seiderer <ps.report@gmx.net>
 F:	board/raspberrypi/