Change namespace from PRDF to libhei

Signed-off-by: Zane Shelley <zshelle@us.ibm.com>
Change-Id: I0859757ae427913feadd9bb0e4b120da998d644b
diff --git a/src/register/prdfScanFacility.C b/src/register/prdfScanFacility.C
index 9175471..2ce591d 100755
--- a/src/register/prdfScanFacility.C
+++ b/src/register/prdfScanFacility.C
@@ -38,7 +38,7 @@
 #include <prdfFlyWeightS.C>
 #include <prdfScomRegisterAccess.H>
 
-namespace PRDF
+namespace libhei
 {
 
 //----------------------------------------------------------------------
@@ -231,5 +231,5 @@
 
 #endif
 
-} // end namespace PRDF
+} // end namespace libhei