staging/rtl8192u: don't init globals to 0 or NULL

Fix a couple of instances where checkpatch complained about
initializing globals with 0.

Signed-off-by: Sebastian Hahn <snsehahn@cip.cs.fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
Simple merge