rtlwifi: rtl8192cu: Fix duplicate if test

rtlwifi: rtl8192cu: Fix duplicate if test

commit 1288aa4e80145d9f4196df32f717b4c1cf6aab61 upstream.

A typo causes routine rtl92cu_phy_rf6052_set_cck_txpower() to test the
same condition twice. The problem was found using cppcheck-1.49, and the
proper fix was verified against the pre-mac80211 version of the code.

Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>