olsrd: fix APK package build

Can't use the iptables meta packages apparantly:

ERROR: unable to select packages:
  ip6tables (virtual):
    note: please select one of the 'provided by'
          packages explicitly
    provided by: ip6tables-nft
                 ip6tables-zz-legacy
    required by: world[ip6tables]
                 olsrd-2024.06.09~d72be9ad-r1[ip6tables]
  iptables (virtual):
    note: please select one of the 'provided by'
          packages explicitly
    provided by: iptables-nft iptables-zz-legacy
    required by: olsrd-2024.06.09~d72be9ad-r1[iptables]

Signed-off-by: Packet Please <[email protected]>

Author: pktpls

olsrd/Makefile

@@ -34,7 +34,7 @@ endef
 define Package/olsrd
   $(call Package/olsrd/template)
   MENU:=1
-  DEPENDS:=+libpthread +libubus +iptables +IPV6:ip6tables
+  DEPENDS:=+libpthread +libubus +iptables-nft +IPV6:ip6tables-nft
 endef
 
 define Package/olsrd/conffiles