Merge pull request #7951 from cladmi/pr/conflicting_module_names

examples/emcute/Makefile

examples/gcoap/Makefile

examples/gnrc_tftp/Makefile

examples/posix_sockets/Makefile

examples/saul/Makefile

pkg/libfixmath/patches/0001-Move-to-RIOT-Makefiles.patch

pkg/libfixmath/patches/0002-Fix-warnings.patch

pkg/libfixmath/patches/0003-Adapt-unittests-for-RIOT.patch

...hange-conflicting-module-name-for-pkg-root-director.patch

pkg/u8g2/patches/0001-u8g2-add-RIOT-makefiles.patch

pkg/u8g2/patches/0002-add-RIOT-interface.patch

...hange-conflicting-module-name-for-pkg-root-director.patch