Fix build breakage when one isn't building with IEEE80211_SUPPORT_SUPERG.
Fix build breakage when one isn't building with IEEE80211_SUPPORT_SUPERG.

Noticed by:	mav

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