Correct error in commit 36437: restore interrupt must be $10, not $06

git-svn-id: trunk@36497 -

rtl/msdos/system.pp

@@ -251,7 +251,7 @@ Procedure SysInitFPU;
           mov bx,word [SaveInt10]
           mov dx,word [SaveInt10+2]
           mov es,dx
-          mov ax, $2506
+          mov ax, $2510
           int $21
           pop es
         end;