PRD: Import extra signatures into OCMB rule file

Change-Id: I9d19bb8b21fc52d6b7754b5c1a73f97158c8eda5
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/95628
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Benjamen G Tyner <ben.tyner@ibm.com>
Reviewed-by: Brian J Stegmiller <bjs@us.ibm.com>
Reviewed-by: Zane C Shelley <zshelle@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/95808
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>

src/usr/diag/prdf/common/plat/explorer/explorer_ocmb.rule

@@ -31,6 +31,9 @@ chip explorer_ocmb
     dump        DUMP_CONTENT_HW;
     scomlen     64;
 
+# Import signatures
+.include "prdfMemExtraSig.H";
+
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