Update database to allow a no-usb-boot osfeature

sql/database-create.sql

@@ -2904,7 +2904,7 @@ CREATE TABLE `os_info` (
   `path` tinytext,
   `magic` tinytext,
   `machinetype` varchar(30) NOT NULL default '',
-  `osfeatures` set('ping','ssh','ipod','isup','veths','veth-ne','veth-en','mlinks','linktest','linkdelays','vlans','suboses','ontrustedboot') default NULL,
+  `osfeatures` set('ping','ssh','ipod','isup','veths','veth-ne','veth-en','mlinks','linktest','linkdelays','vlans','suboses','ontrustedboot','no-usb-boot') default NULL,
   `ezid` tinyint(4) NOT NULL default '0',
   `shared` tinyint(4) NOT NULL default '0',
   `mustclean` tinyint(4) NOT NULL default '1',

sql/updates/4/305

+#
+# Add no-usb-boot as a possible osfeature.
+#
+use strict;
+use libdb;
+
+my $impotent = 0;
+
+sub DoUpdate($$$)
+{
+    my ($dbhandle, $dbname, $version) = @_;
+
+    DBQueryFatal("alter table os_info modify ".
+                 "  `osfeatures` set('ping','ssh','ipod','isup','veths','veth-ne','veth-en','mlinks','linktest','linkdelays','vlans','suboses','ontrustedboot','no-usb-boot') default NULL");
+
+    return 0;
+}
+
+1;