Implement BlGetSecureBootStatus() and do some refactoring

xtldr2/includes/bootman.h

@@ -69,6 +69,10 @@ XTCDECL
 PWCHAR
 BlGetConfigValue(IN CONST PWCHAR ConfigName);
 
+XTCDECL
+INT_PTR
+BlGetSecureBootStatus();
+
 XTCDECL
 EFI_STATUS
 BlGetVolumeDevicePath(IN PCHAR SystemPath,

xtldr2/includes/globals.h

@@ -16,10 +16,7 @@
 EXTERN PLIST_ENTRY BlpConfig;
 
 /* XT Boot Loader loaded configuration */
-EXTERN LIST_ENTRY BlpConfiguration;
-
-/* XT Boot Loader debug port configuration */
-EXTERN ULONG BlpDebugPort;
+EXTERN LIST_ENTRY BlpConfigSections;
 
 /* XT Boot Loader hex table */
 EXTERN PUINT16 BlpHexTable;
@@ -27,9 +24,6 @@ EXTERN PUINT16 BlpHexTable;
 /* XT Boot Loader menu list */
 EXTERN PLIST_ENTRY BlpMenuList;
 
-/* Serial port configuration */
-EXTERN CPPORT BlpSerialPort;
-
 /* XT Boot Loader status data */
 EXTERN XTBL_STATUS BlpStatus;