staging: r8188eu: mark is_ap_in_tkip as bool

Mark is_ap_in_tkip as bool as it returns true/false.
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-12-makvihas@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_wlan_util.c

@@ -1013,7 +1013,7 @@ void update_beacon_info(struct adapter *padapter, u8 *pframe, uint pkt_len, stru
 	}
 }
 
-unsigned int is_ap_in_tkip(struct adapter *padapter)
+bool is_ap_in_tkip(struct adapter *padapter)
 {
 	u32 i;
 	struct ndis_802_11_var_ie *pIE;

drivers/staging/r8188eu/include/rtw_mlme_ext.h

@@ -508,7 +508,7 @@ unsigned int receive_disconnect(struct adapter *padapter,
 
 unsigned char get_highest_rate_idx(u32 mask);
 int support_short_GI(struct adapter *padapter, struct HT_caps_element *caps);
-unsigned int is_ap_in_tkip(struct adapter *padapter);
+bool is_ap_in_tkip(struct adapter *padapter);
 
 void report_join_res(struct adapter *padapter, int res);
 void report_survey_event(struct adapter *padapter, struct recv_frame *precv_frame);