BaseTools: Fix a bug for Mixed Pcd value display in the report
BaseTools: Fix a bug for Mixed Pcd value display in the report

the case is that override the mixed pcd value in DSC [Components]
section, the value display in the report is incorrect.

Cc: Liming Gao <6480311aeeb4b006862f6d13ebabddc03f51e507@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Yonghong Zhu <78d981fe33a016071af5222c56d5cf77f30fb0b2@intel.com>
Reviewed-by: Liming Gao <6480311aeeb4b006862f6d13ebabddc03f51e507@intel.com>

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