Commit
06e29e16991a1bf3c1387804667420f507ee2106
by Vadim YanitskiyMakefile: ctags: include *.cc/*.hh files
Also generate tags for *.cc/*.hh files. In order to avoid generating
tags for generated source files, limit the search scope for `find`.
Change-Id: Iab28b36ea6bb6ece45d1834dfc04be489da39ea2