[settings] Extend numerical setting tags to "unsigned long"

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/core/memmap_settings.c

 	unsigned int i;
 	unsigned int count;
 
-	DBGC ( settings, "MEMMAP start %d count %d %s%s%s%s scale %d\n",
+	DBGC ( settings, "MEMMAP start %ld count %ld %s%s%s%s scale %ld\n",
 	       MEMMAP_START ( setting->tag ), MEMMAP_COUNT ( setting->tag ),
 	       ( MEMMAP_INCLUDE_START ( setting->tag ) ? "start" : "" ),
 	       ( ( MEMMAP_INCLUDE_START ( setting->tag ) &&

src/core/settings.c

  * @v name		Name
  * @ret tag		Tag number, or 0 if not a valid number
  */
-static unsigned int parse_setting_tag ( const char *name ) {
+static unsigned long parse_setting_tag ( const char *name ) {
 	char *tmp = ( ( char * ) name );
-	unsigned int tag = 0;
+	unsigned long tag = 0;
 
 	while ( 1 ) {
 		tag = ( ( tag << 8 ) | strtoul ( tmp, &tmp, 0 ) );

src/include/ipxe/settings.h

 	 * (such as a DHCP option number, or an SMBIOS structure and
 	 * field number).
 	 */
-	unsigned int tag;
+	unsigned long tag;
 	/** Setting scope (or NULL)
 	 *
 	 * For historic reasons, a NULL scope with a non-zero tag