gst-plugins-good: removed unconditional dep on x11

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
gst-plugins-good: pull libogg if flac requested

Otherwise ./configure script doesn't find the ogg package and doesn't
build flac.

Closes #24233.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
gst-plugins-good: use ogg if flac is requested