nl80211: Correct the usage of command NL80211_CMD_VENDOR

Assign/pass the cur_cmd_info parameter correctly. This fixes a
merge error when open source commit
ad7e718c9b4f717823fd920a0103f7b0fb06183f was pulled into the tree.

Signed-off-by: Sunil Dutt <usdutt@codeaurora.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Build v3.73b