Fix for HDAT HB reserved memory ranges not incrementing section number

Change-Id: Ic7bc0125ec381eb1bf4c8483b82587cb6932fe2b
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/38302
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: William G. Hoffa <wghoffa@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Reviewed-by: Christian R. Geddes <crgeddes@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/usr/runtime/populate_hbruntime.C

@@ -292,8 +292,9 @@ errlHndl_t getNextRhbAddrRange(hdatMsVpdRhbAddrRange_t* & o_rngPtr)
         o_rngPtr =
             reinterpret_cast<hdatMsVpdRhbAddrRange_t *>(l_rsvMemDataAddr);
 
+        l_nextSection++;
         l_sys->setAttr
-            <TARGETING::ATTR_HB_RSV_MEM_NEXT_SECTION>(l_nextSection++);
+            <TARGETING::ATTR_HB_RSV_MEM_NEXT_SECTION>(l_nextSection);
 
     } while(0);