Fix some EFI_MEMORY_FOO definitions

Signed-off-by: Peter Jones <pjones@redhat.com>

inc/efidef.h

@@ -190,12 +190,13 @@ typedef enum {
 #define EFI_MEMORY_WC           0x0000000000000002
 #define EFI_MEMORY_WT           0x0000000000000004
 #define EFI_MEMORY_WB           0x0000000000000008
-#define EFI_MEMORY_UCE          0x0000000000000010  
-
-// physical memory protection on range 
+#define EFI_MEMORY_UCE          0x0000000000000010
 #define EFI_MEMORY_WP           0x0000000000001000
+
+// physical memory protection on range
 #define EFI_MEMORY_RP           0x0000000000002000
 #define EFI_MEMORY_XP           0x0000000000004000
+#define EFI_MEMORY_RO           0x0000000000020000
 
 // range requires a runtime mapping
 #define EFI_MEMORY_RUNTIME      0x8000000000000000