Based on the feature PCD value, browser will decide whether to gray out the read only menu.

Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14112 6f19259b-4bc3-4df7-8a09-765794883524
1. Update DxeCore to get correct AuthenticationStatus and invoke gSecurity after FV image file is extracted by ReadSection(), and remove the gSecurity invoking in SmmDriverDispatchHandler() in SmmCore since FV has been verified in DxeCore.
2. Update SmmLoadImage() to return EFI_SECURITY_VIOLATION when gSecurity returns EFI_SECURITY_VIOLATION.

Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14113 6f19259b-4bc3-4df7-8a09-765794883524