Add missing symbols into the libblockdev-sections.txt file
Add missing symbols into the libblockdev-sections.txt file

So that they appear in the generated documentation.

vpodzime/libblockdev,atodorov/libblockdev,dashea/libblockdev,rhinstaller/libblockdev,rhinstaller/libblockdev,rhinstaller/libblockdev,atodorov/libblockdev,vpodzime/libblockdev,snbueno/libblockdev,vpodzime/libblockdev,atodorov/libblockdev,snbueno/libblockdev,dashea/libblockdev