package/urg: don't override URG_CONF_OPTS
URG_CONF_OPTS is wrongly overridden in a conditional since commit
d0433603e3c7de5a0d7d6a434b4cb45ef5e5b533
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>