connman: Mark iptables/nftables mutually incompatible

Only one of iptables or nftables can be specified, mark them mutually
incompatible. Drop the RDEPENDS on iptables from PACKAGECONFIG as its
libraries are automatically discovered on the main package, with only the
scripts required as part of iptables/ip6tables-test.

(From OE-Core rev: fa6772414b065f3f5481e328f182eecc971d2605)

Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-connectivity/connman/connman_1.44.bb

@@ -69,8 +69,8 @@ PACKAGECONFIG[l2tp] = "--enable-l2tp --with-l2tp=${sbindir}/xl2tpd,--disable-l2t
 PACKAGECONFIG[pptp] = "--enable-pptp --with-pptp=${sbindir}/pptp,--disable-pptp,ppp,pptp-linux"
 # WISPr support for logging into hotspots, requires TLS
 PACKAGECONFIG[wispr] = "--enable-wispr,--disable-wispr,gnutls,"
-PACKAGECONFIG[nftables] = "--with-firewall=nftables ,,libmnl libnftnl,,kernel-module-nf-tables kernel-module-nft-chain-nat-ipv4 kernel-module-nft-chain-route-ipv4 kernel-module-nft-masq-ipv4 kernel-module-nft-nat"
-PACKAGECONFIG[iptables] = "--with-firewall=iptables ,,iptables,iptables"
+PACKAGECONFIG[nftables] = "--with-firewall=nftables ,,libmnl libnftnl,,kernel-module-nf-tables kernel-module-nft-chain-nat-ipv4 kernel-module-nft-chain-route-ipv4 kernel-module-nft-masq-ipv4 kernel-module-nft-nat,iptables"
+PACKAGECONFIG[iptables] = "--with-firewall=iptables,,iptables,,,nftables"
 PACKAGECONFIG[nfc] = "--enable-neard, --disable-neard, neard, neard"
 PACKAGECONFIG[client] = "--enable-client,--disable-client,readline"
 PACKAGECONFIG[wireguard] = "--enable-wireguard,--disable-wireguard,libmnl"
@@ -167,6 +167,7 @@ FILES:${PN}-tools = "${bindir}/wispr"
 RDEPENDS:${PN}-tools = "${PN}"
 
 FILES:${PN}-tests = "${bindir}/*-test"
+RDEPENDS:${PN}-tests = "${@bb.utils.contains('PACKAGECONFIG', 'iptables', 'iptables', '', d)}"
 
 FILES:${PN}-client = "${bindir}/connmanctl"
 RDEPENDS:${PN}-client = "${PN}"