iptables: fix typos in 600-shared-libext.patch (FS#711)

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/network/utils/iptables/patches/600-shared-libext.patch

@@ -32,12 +32,12 @@
  
 -libext_ebt.a: initextb.o ${libext_ebt_objs}
 -	${AM_VERBOSE_AR} ${AR} crs $@ $^;
-+libiptext_ebt.so: initextb.o ${libext_ebt__objs}
++libiptext_ebt.so: initextb.o ${libext_ebt_objs}
 +	${AM_VERBOSE_CCLD} ${CCLD} ${AM_LDFLAGS} -shared ${LDFLAGS} -o $@ $^ -L../libxtables/.libs -lxtables ${$*_LIBADD};
  
 -libext_arpt.a: initexta.o ${libext_arpt_objs}
 -	${AM_VERBOSE_AR} ${AR} crs $@ $^;
-+libiptext_arpt.so: initexta.o ${libext_arpt__objs}
++libiptext_arpt.so: initexta.o ${libext_arpt_objs}
 +	${AM_VERBOSE_CCLD} ${CCLD} ${AM_LDFLAGS} -shared ${LDFLAGS} -o $@ $^ -L../libxtables/.libs -lxtables ${$*_LIBADD};
  
 -libext4.a: initext4.o ${libext4_objs}