meson: fix default value in meson_options.txt
meson: fix default value in meson_options.txt

Keyword is named 'value', not 'default'

Signed-off-by: Peter Hutterer <b9c50af7afa7642f6f854434cda9ffe54ece8b85@who-t.net>

libratbag/libratbag,libratbag/libratbag,libratbag/libratbag,whot/libratbag,whot/libratbag,whot/libratbag