Enable parameter in iPXE images

roles/netbootxyz/files/ipxe/local/general.h

@@ -8,6 +8,7 @@
 #define NET_PROTO_IPV6        /* IPv6 protocol */
 #define NSLOOKUP_CMD          /* DNS resolving command */
 #define NTP_CMD               /* NTP commands */
+#define PARAM_CMD             /* Form parameter commands */
 #define PCI_CMD               /* PCI commands */
 #define PING_CMD              /* Ping command */
 #define REBOOT_CMD            /* Reboot command */

roles/netbootxyz/files/ipxe/local/general.h.efi

@@ -7,6 +7,7 @@
 #define NET_PROTO_IPV6        /* IPv6 protocol */
 #define NSLOOKUP_CMD          /* DNS resolving command */
 #define NTP_CMD               /* NTP commands */
+#define PARAM_CMD             /* Form parameter commands */
 #define PCI_CMD               /* PCI commands */
 #define PING_CMD              /* Ping command */
 #define REBOOT_CMD            /* Reboot command */