FST: Mark wpa_supplicant callback functions get_peer_{first,next} static

These are used only through function pointers, so no need to keep the
functions non-static.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

wpa_supplicant/wpa_supplicant.c

@@ -4009,8 +4009,9 @@ static void wpas_fst_update_mb_ie_cb(void *ctx, const u8 *addr,
 }
 
 
-const u8 * wpas_fst_get_peer_first(void *ctx, struct fst_get_peer_ctx **get_ctx,
-				   Boolean mb_only)
+static const u8 * wpas_fst_get_peer_first(void *ctx,
+					  struct fst_get_peer_ctx **get_ctx,
+					  Boolean mb_only)
 {
 	struct wpa_supplicant *wpa_s = ctx;
 
@@ -4022,8 +4023,9 @@ const u8 * wpas_fst_get_peer_first(void *ctx, struct fst_get_peer_ctx **get_ctx,
 }
 
 
-const u8 * wpas_fst_get_peer_next(void *ctx, struct fst_get_peer_ctx **get_ctx,
-				  Boolean mb_only)
+static const u8 * wpas_fst_get_peer_next(void *ctx,
+					 struct fst_get_peer_ctx **get_ctx,
+					 Boolean mb_only)
 {
 	return NULL;
 }