ar71xx: Renamed Gainstrong MiniBox profile to Gainstrong (manufacturer) and updated copyright

This is the first patch of a series of three to tidy up the profiles for
Gainstrong devices. Right now there are two Gainstrong profiles, each
for a single device built by this manufacturer. This patch renames the
MiniBox profile to Gainstrong and updates the copyright notice.

The series applies cleanly to current trunk. Resent with the architecture in
the subject, forgot that the first time.

Signed-off by: Stijn Segers <francesco.borromini@inventati.org>

SVN-Revision: 48797

target/linux/ar71xx/generic/profiles/gainstrong.mk

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2015 OpenWrt.org
+# Copyright (C) 2015-2016 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.