[build] Discard junk sections created by newer gcc versions

src/arch/i386/scripts/efi.lds

 
     /DISCARD/ : {
 	*(.comment)
+	*(.comment.*)
 	*(.note)
+	*(.note.*)
+	*(.eh_frame)
+	*(.eh_frame.*)
+	*(.rel)
+	*(.rel.*)
     }
 
     /*

src/arch/i386/scripts/i386.lds

 
     /DISCARD/ : {
 	*(.comment)
+	*(.comment.*)
 	*(.note)
+	*(.note.*)
+	*(.eh_frame)
+	*(.eh_frame.*)
+	*(.rel)
+	*(.rel.*)
     }
 
     /*