Fix build when yasm is installed and nasm is not
meson: Replace tabs with spaces everywhere We don't really want mixed tabs and spaces. No code changes.
meson: Differentiate arguments passed to nasm and yasm Explicitly pass debug arguments and pass them correctly to nasm and yasm. This is basically what ffmpeg's configure also does. Note: I didn't add auto-detection of build type on purpose because ffmpeg does not do that either. Closes https://gitlab.freedesktop.org/gstreamer/meson-ports/ffmpeg/issues/4
ci: Add a separate job for testing with yasm Only 64-bit for now.