fix lxc config key in get_start_stop_list sub

When adding the new LXC config format we forgot to adapt the
get_start_stop_list and do s/pve.startup/onboot/

This fixes that qemu VMs were started always before LXC CTs,
irregardless of the defined order.

This also let's us simplify the surrounding code and reduce code
reuse.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

PVE/API2/Nodes.pm

@@ -1145,18 +1145,15 @@ my $get_start_stop_list = sub {
 	    
 	    my $bootorder = LONG_MAX;
 
+	    my $conf;
 	    if ($d->{type} eq 'lxc') {
-		my $conf = PVE::LXC::load_config($vmid); 
-		return if $autostart && !$conf->{'onboot'};
-		
-		if ($conf->{'pve.startup'}) {
-		    $startup = PVE::JSONSchema::pve_parse_startup_order($conf->{'startup'});
-		    $startup->{order} = $bootorder if !defined($startup->{order});
+		$conf = PVE::LXC::load_config($vmid);
+	    } elsif ($d->{type} eq 'qemu') {
+		$conf = PVE::QemuServer::load_config($vmid);
 	    } else {
-		    $startup = { order => $bootorder };
+		die "unknown VM type '$d->{type}'\n";
 	    }
-	    } elsif ($d->{type} eq 'qemu') {
-		my $conf = PVE::QemuServer::load_config($vmid);
+
 	    return if $autostart && !$conf->{onboot};
 
 	    if ($conf->{startup}) {
@@ -1165,9 +1162,6 @@ my $get_start_stop_list = sub {
 	    } else {
 		$startup = { order => $bootorder };
 	    }
-	    } else {
-		die "unknown VM type '$d->{type}'\n";
-	    }
 
 	    # skip ha managed VMs (started by pve-ha-manager)
 	    return if defined($haconf->{ids}->{"pvevm:$vmid"});