MinPlatformPkg/AcpiPlatform: Use PCD for WSMT OEM revision

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3532



Updates the table to use the standard MdeModulePkg PCD
PcdAcpiDefaultOemRevision to set the OEM revision in WSMT.

This allows board packages to easily configure the OEM
revision value.

Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Eric Dong <eric.dong@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>