ffserver: tests, use new port/bindaddress config

Comming from commit 1013d8dd
the old Port and BindAddress config vars have been deprecated
in favor of HTTPPort and HTTPBindAddress respectively.
Signed-off-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>

tests/ffserver.conf

@@ -11,13 +11,13 @@
 # port from your standard http web server if it is running on the same
 # computer.
 
-Port 9999
+HTTPPort 9999
 RTSPPort 9990
 
 # Address on which the server is bound. Only useful if you have
 # several network interfaces.
 
-BindAddress 0.0.0.0
+HTTPBindAddress 0.0.0.0
 
 # Number of simultaneous requests that can be handled. Since FFServer
 # is very fast, this limit is determined mainly by your Internet