MFC if_msk.c rev. 1.14 to RELENG_6.   Fix TCP header size calculation logic which is used for setting   TSO MTU.
MFC if_msk.c rev. 1.14 to RELENG_6.
  Fix TCP header size calculation logic which is used for setting
  TSO MTU.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase