Change CMake rules to make tarballs for themes created during building.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 50fd6b574d)

media/CMakeLists.txt

@@ -13,11 +13,12 @@ install(
     DESTINATION ${DATA_INSTALL_DIR}/${PROJECT_NAME}
 )
 
-install(
-    FILES
-        KBDefault.tar.gz
-        KSDefault.tar.gz
-        KCDefault.tar.gz
+foreach( _theme KBDefault KCDefault KSDefault )
 
+    tde_create_tarball(
+        TARGET ${_theme}.tar.gz
+        SOURCEDIR ${CMAKE_CURRENT_SOURCE_DIR}/${_theme}
         DESTINATION ${DATA_INSTALL_DIR}/${PROJECT_NAME}/themes
-)
+    )
+
+endforeach( )