qcacld-3.0: Fix -Wmissing-prototypes in lim_send_sme_rsp_messages

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

Change-Id: I5f97e655d54f06f752d8e83298250ce80e5369e0
CRs-Fixed: 1075090
diff --git a/core/mac/src/pe/lim/lim_send_sme_rsp_messages.c b/core/mac/src/pe/lim/lim_send_sme_rsp_messages.c
index 60ee955..6b524cf 100644
--- a/core/mac/src/pe/lim/lim_send_sme_rsp_messages.c
+++ b/core/mac/src/pe/lim/lim_send_sme_rsp_messages.c
@@ -398,7 +398,7 @@
  *
  * Return: None
  */
-void lim_add_bss_info(tpDphHashNode sta_ds, tpSirSmeJoinRsp sme_join_rsp)
+static void lim_add_bss_info(tpDphHashNode sta_ds, tpSirSmeJoinRsp sme_join_rsp)
 {
 	struct parsed_ies *parsed_ies = &sta_ds->parsed_ies;