gtest: fix URL in package description

http://code.google.com/p/googletest redirects to
https://github.com/google/googletest, now.

Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/gtest/Config.in

@@ -19,7 +19,7 @@ config BR2_PACKAGE_GTEST
 	  This package allows running testsuites on the target which
 	  might be advantageous in certain cases.
 
-	  http://code.google.com/p/googletest/
+	  https://github.com/google/googletest
 
 comment "gtest needs a toolchain w/ C++, wchar, threads"
 	depends on BR2_USE_MMU