build-debian: Fix Debian (non-Ubuntu) builds

Provide a valid changelog for test builds on sid.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
ppa: Update symbol list to reflect new addition

Add stc_standalone_init.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
ppa: Bump Debian standards version to 3.9.6

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>