tests/egl/spec: make egl_ext_surface_compression conditional to X11
Otherwise, this error occurs:
| In file included from /srv/storage/alex/yocto/build-64/workspace/sources/piglit/tests/egl/spec/egl_ext_surface_compression/create_surface.c:28:
| /srv/storage/alex/yocto/build-64/workspace/sources/piglit/tests/egl/spec/egl_ext_surface_compression/../../egl-util.h:12:10: fatal error: X11/Xlib.h: No such file or directory
| 12 | #include <X11/Xlib.h>
| | ^~~~~~~~~~~~
Signed-off-by: Alexander Kanavin alex@linutronix.de
Edited by Alexander Kanavin