fixed building eti-cmdline-xml

[andimik]

before

$ make
Consolidate compiler generated dependencies of target eti-cmdline-xml
[  3%] Building CXX object CMakeFiles/eti-cmdline-xml.dir/devices/xml-filereader/xml-filereader.cpp.o
/home/andreas/apps/eti-stuff/eti-cmdline/devices/xml-filereader/xml-filereader.cpp: In constructor ‘xml_fileReader::xml_fileReader(std::string, bool, inputstopped_t)’:
/home/andreas/apps/eti-stuff/eti-cmdline/devices/xml-filereader/xml-filereader.cpp:40:54: error: ‘INPUT_FRAMEBUFFERS’ was not declared in this scope; did you mean ‘INPUT_FRAMEBUFFERSIZE’?
   40 |                                           _I_Buffer (INPUT_FRAMEBUFFERS) {
      |                                                      ^~~~~~~~~~~~~~~~~~
      |                                                      INPUT_FRAMEBUFFERSIZE
make[2]: *** [CMakeFiles/eti-cmdline-xml.dir/build.make:398: CMakeFiles/eti-cmdline-xml.dir/devices/xml-filereader/xml-filereader.cpp.o] Fehler 1
make[1]: *** [CMakeFiles/Makefile2:84: CMakeFiles/eti-cmdline-xml.dir/all] Fehler 2
make: *** [Makefile:136: all] Fehler 2

after

[100%] Built target eti-cmdline-xml