community/qt5-qtbase: fix -dev deps
commit 8ee3cb9f ("community/qt5-qtbase: respect CFLAGS, fix -dbg (#12889 (closed))") erroneously removed subpackages from dev depends, restore it
commit 8ee3cb9f ("community/qt5-qtbase: respect CFLAGS, fix -dbg (#12889 (closed))") erroneously removed subpackages from dev depends, restore it