Updated Makefile for ORNL Jaguar.
Updated Makefile for ORNL Jaguar.

sxds/opemmc,johnnyliu27/openmc,shikhar413/openmc,keadyk/openmc_mg_prepush,kellyrowland/openmc,lilulu/openmc,shikhar413/openmc,johnnyliu27/openmc,paulromano/openmc,samuelshaner/openmc,lilulu/openmc,liangjg/openmc,paulromano/openmc,mit-crpg/openmc,shenqicang/openmc,amandalund/openmc,amandalund/openmc,johnnyliu27/openmc,mit-crpg/openmc,liangjg/openmc,amandalund/openmc,lilulu/openmc,mit-crpg/openmc,samuelshaner/openmc,wbinventor/openmc,wbinventor/openmc,keadyk/openmc_mg_prepush,keadyk/openmc_mg_prepush,samuelshaner/openmc,walshjon/openmc,walshjon/openmc,paulromano/openmc,walshjon/openmc,bhermanmit/cdash,bhermanmit/openmc,samuelshaner/openmc,kellyrowland/openmc,mjlong/openmc,shenqicang/openmc,wbinventor/openmc,shikhar413/openmc,smharper/openmc,liangjg/openmc,walshjon/openmc,johnnyliu27/openmc,smharper/openmc,smharper/openmc,bhermanmit/openmc,amandalund/openmc,mit-crpg/openmc,nhorelik/openmc,paulromano/openmc,nhorelik/openmc,wbinventor/openmc,smharper/openmc,sxds/opemmc,mjlong/openmc,liangjg/openmc,shikhar413/openmc