SecurityPkg/OpalPassword: Remove dependency on EFI_BLOCK_IO_PROTOCOL

SecurityPkg/OpalPassword: Remove dependency on EFI_BLOCK_IO_PROTOCOL

https://bugzilla.tianocore.org/show_bug.cgi?id=2327

RAID drivers abstract their physical drives that make up
the array into a single unit, and do not supply individual
EFI_BLOCK_IO_PROTOCOL instances for each physical drive in the array.
This breaks support for the Security Storage Command Protocol,
which currently requires an EFI_BLOCK_IO_PROTOCOL to be associated
with the same device the protocol is installed on and provide
all the same parameters.

This patch remove dependency on EFI_BLOCK_IO_PROTOCOL and
allows access to Opal drive members of a RAID array.

Signed-off-by: Maggie Chu <maggie.chu@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Cc: Chao Zhang <chao.b.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>