Restore original IDT entry if RegisterInterruptHandler() was used to unregister user defined interrupt handler.

Signed-off-by: vanjeff
Reviewed-by: rsun3



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12719 6f19259b-4bc3-4df7-8a09-765794883524
2 files changed