BaseTools:Build fail when PCD use in the [DEPEX] section of INF files

BaseTools:Build fail when PCD use in the [DEPEX] section of INF files

Update _FixedPcdVoidTypeDict to FixedVoidTypePcds
'_FixedPcdVoidTypeDict' no longer exists because edk2 version (b23414f6).
'ModuleAutoGen' object has no attribute '_FixedPcdVoidTypeDict'.
Build fail when PCD use in the [DEPEX] section of INF files

Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Zhiju.Fan <zhijux.fan@intel.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>