qcacld-3.0: Fix -Wmissing-prototypes in lim_ft*

We want to enable the compiler's -Wmissing-prototypes switch, but
there is existing code that is generating warnings. Fix all warnings
in lim_ft & lim_ft_preauth.

Change-Id: I566992b77e47309f8a98fa5be8b46014140820a1
CRs-Fixed: 1075090

core/mac/src/pe/lim/lim_ft.c

@@ -861,7 +861,7 @@ bool lim_process_ft_update_key(tpAniSirGlobal pMac, uint32_t *pMsgBuf)
 	return true;
 }
 
-void
+static void
 lim_ft_send_aggr_qos_rsp(tpAniSirGlobal pMac, uint8_t rspReqd,
 			 tpAggrAddTsParams aggrQosRsp, uint8_t smesessionId)
 {

core/mac/src/pe/lim/lim_ft_preauth.c

@@ -350,12 +350,13 @@ tSirRetStatus lim_ft_setup_auth_session(tpAniSirGlobal pMac,
  * lim_ft_process_pre_auth_result() - Process the Auth frame
  * @pMac: Global MAC context
  * @status: Status code
- * psessionEntry: PE Session
+ * @psessionEntry: PE Session
  *
  * Return: None
  */
-void lim_ft_process_pre_auth_result(tpAniSirGlobal pMac, QDF_STATUS status,
-				    tpPESession psessionEntry)
+static void lim_ft_process_pre_auth_result(tpAniSirGlobal pMac,
+					   QDF_STATUS status,
+					   tpPESession psessionEntry)
 {
 	if (NULL == psessionEntry ||
 	    NULL == psessionEntry->ftPEContext.pFTPreAuthReq)