staging: r8188eu: Fix Smatch warnings

staging: r8188eu: Fix Smatch warnings

Smatch reports the following:

core/rtw_ieee80211.c:489 rtw_get_wpa_cipher_suite() warn: add some parenthesis here?
core/rtw_ieee80211.c:491 rtw_get_wpa_cipher_suite() warn: add some parenthesis here?
core/rtw_ieee80211.c:493 rtw_get_wpa_cipher_suite() warn: add some parenthesis here?
core/rtw_ieee80211.c:495 rtw_get_wpa_cipher_suite() warn: add some parenthesis here?
core/rtw_ieee80211.c:497 rtw_get_wpa_cipher_suite() warn: add some parenthesis here?
core/rtw_ieee80211.c:505 rtw_get_wpa2_cipher_suite() warn: add some parenthesis here?
core/rtw_ieee80211.c:507 rtw_get_wpa2_cipher_suite() warn: add some parenthesis here?
core/rtw_ieee80211.c:509 rtw_get_wpa2_cipher_suite() warn: add some parenthesis here?
core/rtw_ieee80211.c:511 rtw_get_wpa2_cipher_suite() warn: add some parenthesis here?
core/rtw_ieee80211.c:513 rtw_get_wpa2_cipher_suite() warn: add some parenthesis here?
core/rtw_ieee80211.c:534 rtw_parse_wpa_ie() warn: add some parenthesis here?
core/rtw_ieee80211.c:579 rtw_parse_wpa_ie() warn: add some parenthesis here?
core/rtw_ieee80211.c:649 rtw_parse_wpa2_ie() warn: add some parenthesis here?
core/rtw_ieee80211.c:803 rtw_get_wps_attr() warn: add some parenthesis here?
core/rtw_ieee80211.c:1213 rtw_get_p2p_ie() warn: add some parenthesis here?
core/rtw_ieee80211.c:1248 rtw_get_p2p_attr() warn: add some parenthesis here?
core/rtw_mlme.c:258 _rtw_find_network() warn: add some parenthesis here?
core/rtw_mlme.c:1581 rtw_check_join_candidate() warn: this array is probably non-NULL. 'pmlmepriv->assoc_ssid.Ssid'
core/rtw_mlme.c:1843 SecIsInPMKIDList() warn: add some parenthesis here?
core/rtw_mlme_ext.c:4189 on_action_public_vendor() warn: add some parenthesis here?
core/rtw_recv.c:1157 validate_recv_mgnt_frame() warn: add some parenthesis here?
core/rtw_xmit.c:671 xmitframe_addmic() warn: add some parenthesis here?
hal/rtl8188e_mp.c:206 Hal_MPT_CCKTxPowerAdjustbyIndex() error: buffer overflow 'CCKSwingTable_Ch1_Ch13' 33 <= 255
hal/rtl8188e_mp.c:215 Hal_MPT_CCKTxPowerAdjustbyIndex() error: buffer overflow 'CCKSwingTable_Ch14' 33 <= 255

Not listed here is one remaining buffer overflow message that I believe to be an error in Smatch.

These warnings were reported by Dan Carpenter.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>