BaseTools: Rsa2048Sha256Sign add new option to support Monotonic count

BaseTools: Rsa2048Sha256Sign add new option to support Monotonic count

the EFI_FIRMWARE_IMAGE_AUTHENTICATION struct require the AuthInfo which
is a signature across the image data and the Monotonic Count value, so we
add the new option to support Monotonic count.

Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>