MT#17699 Bump Standards-Version to 3.9.7

No further changes required to update to Debian Policy 3.9.7[.0]

Change-Id: I51dea4e6102d6f9294ecd07f058a6cf5519a1051

debian/control

@@ -9,7 +9,7 @@ Build-Depends: autotools-dev,
                libpcre3-dev,
                libssl-dev,
                unixodbc-dev
-Standards-Version: 3.9.6
+Standards-Version: 3.9.7
 
 Package: ngcp-asterisk
 Architecture: any