package/xtables-addons: replace XTABLES_ADDONS_DISABLE_GEOIP_HELPERS

Replace XTABLES_ADDONS_DISABLE_GEOIP_HELPERS by
XTABLES_ADDONS_REMOVE_GEOIP_HELPERS to avoid the following build failure
raised since bump to version 3.22 in commit
53f2999e:

make[3]: *** No rule to make target '/xt_geoip_query', needed by 'all-am'.  Stop.

Fixes:
 - http://autobuild.buildroot.org/results/f2d596b510f027b94a6b1fad10c363922c50cbec



Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>