Staging: rtl8192u: Review phrase and fix spelling errors

This patch removes some serious spelling errors and adds small
improvements to the phrases in order to make them easier to understand.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
Simple merge