Securitypkg/hddpassword: Update HddPasswordDxeInit to use Variable Policy

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4408

Cc: Jiewen Yao   <jiewen.yao@intel.com>
Cc: Maggie Chu   <maggie.chu@intel.com>
Cc: Kumar Rahul  <rahul.r.kumar@intel.com>
Signed-off-by: Linus Liu <linus.liu@intel.com>
Reviewed-by: Jiewen Yao   <jiewen.yao@intel.com>

SecurityPkg/HddPassword/HddPasswordDxe.h

@@ -17,7 +17,6 @@
 #include <Protocol/AtaPassThru.h>
 #include <Protocol/PciIo.h>
 #include <Protocol/HiiConfigAccess.h>
-#include <Protocol/VariableLock.h>
 
 #include <Guid/MdeModuleHii.h>
 #include <Guid/EventGroup.h>