networkmanager-conf: Setup DHCP for nrhw20

Custom config for HW20 with DHCP on the 4 lans of the switch instead
of 4 different static subnets.

BugzID: 60765

recipes-connectivity/networkmanager/networkmanager-conf.bb

@@ -20,7 +20,8 @@ SRC_URI = " \
 "
 
 SRC_URI_append_am335x-nrhw20 = " \
-                file://system-connections.tar.gz \
+                file://system-connections-static.tar.gz \
+                file://system-connections-dhcp.tar.gz \
 "
 
 do_install () {
@@ -44,7 +45,11 @@ do_install () {
 
 do_install_append_am335x-nrhw20() {
     rm -rf ${D}${sysconfdir}/NetworkManager/system-connections/*
-    install -m 0600 ${WORKDIR}/system-connections/* ${D}${sysconfdir}/NetworkManager/system-connections/ 
+    if ${@bb.utils.contains('PACKAGECONFIG','ethernet-dhcp','true','false',d)}; then
+        install -m 0600 ${WORKDIR}/system-connections-dhcp/* ${D}${sysconfdir}/NetworkManager/system-connections/
+    else
+        install -m 0600 ${WORKDIR}/system-connections-static/* ${D}${sysconfdir}/NetworkManager/system-connections/
+    fi
 }
 
 do_install_append_armada-385-nrhw18() {