release: Prepare the 0.8.2 release

I have kind of used 0.8.1 by accident already so let us move
to 0.8.2 now.
diff --git a/debian/control b/debian/control
index 7de6358..782d619 100644
--- a/debian/control
+++ b/debian/control
@@ -11,7 +11,7 @@
 Package: libosmocore
 Section: libs
 Architecture: any
-Depends: libosmocodec0, libosmocore6, libosmogb3, libosmogsm5, libosmovty1, ${misc:Depends}
+Depends: libosmocodec0, libosmocore6, libosmogb4, libosmogsm5, libosmovty1, ${misc:Depends}
 Multi-Arch: foreign
 Description: Open Source MObile COMmunications CORE library
 
@@ -29,7 +29,7 @@
 Multi-Arch: same
 Description: Osmo Core library
 
-Package: libosmogb3
+Package: libosmogb4
 Section: libs
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}