MFC: r283000
MFC: r283000

sfxge: add local variable with changed capabilities mask

It is required for the next patch which adds dependency of TSO
capabilities from Tx checksum offloads.

Sponsored by:   Solarflare Communications, Inc.

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