fix bellow bug:
change checkbox from FALSE to TRUE.EFI_BROWSER_ACTION_CHANGED called
but when checkbox change back to FALSE,don't call EFI_BROWSER_ACTION_CHANGED
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17512 6f19259b-4bc3-4df7-8a09-765794883524