Fix NL80211_SUPPORT build regression

Commit b999e9e64ffe ("Allow iwpriv calls to be replaced with
cfg80211tool in sta.c") removed an unused buf[] variable which was
actually not support in NL80211_SUPPORT=y case. Restore that variable
within the ifdef block that needs it.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
1 file changed