SecurityPkg/TPM2: Move GetDigestListSize() to Tpm2CommandLib

This patch just moves function GetDigestListSize() from
drivers to library and no functionality change.

Cc: Chao B Zhang <chao.b.zhang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>

SecurityPkg/Include/Library/Tpm2CommandLib.h

@@ -988,6 +988,19 @@ GetHashSizeFromAlgo (
   IN TPMI_ALG_HASH    HashAlgo
   );
 
+/**
+  Get TPML_DIGEST_VALUES data size.
+
+  @param[in]     DigestList    TPML_DIGEST_VALUES data.
+
+  @return TPML_DIGEST_VALUES data size.
+**/
+UINT32
+EFIAPI
+GetDigestListSize(
+  IN TPML_DIGEST_VALUES             *DigestList
+  );
+
 /**
   This function get digest from digest list.