package/mediastreamer: update the upstream URL in Config.in

Update the upstream URL in the help text in Config.in. This
addresses the 'Invalid(404)' URL status in the package stats
web page output.

Signed-off-by: Mark Corbin <mark@dibsco.co.uk>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mediastreamer/Config.in

@@ -11,7 +11,7 @@ config BR2_PACKAGE_MEDIASTREAMER
 	  and sending of multimedia streams in linphone, including
 	  voice/video capture, encoding and decoding, and rendering.
 
-	  http://www.linphone.org/eng/documentation/dev/mediastreamer2.html
+	  http://www.linphone.org/technical-corner/mediastreamer2
 
 comment "mediastreamer needs a toolchain w/ threads, C++"
 	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS