Fabtests: Added inband sync to ft_init_fabric_cm.

This patch adds the missing inband sync in ft_fabric_init_cm
to handle the case where  rx buffers are not pre-posted by
the application.
The default behaviour in fabtests is to pre-post a rx buffer.
This change enables fabtests using ft_fabric_init_cm to consume
the posted receive with an inband sync by setting the test option
FT_OPT_NO_PRE_POSTED_RX.

Similar changes have been made to ft_init_fabric
#10394

Signed-off-by: Nikhil Nanal <nikhil.nanal@intel.com>

fabtests/common/shared.c

@@ -1067,6 +1067,13 @@ int ft_init_fabric_cm(void)
 
 	ret = opts.dst_addr ? ft_client_connect() : ft_server_connect();
 
+	if (ft_check_opts(FT_OPT_NO_PRE_POSTED_RX) &&
+	    !ft_check_opts(FT_OPT_SKIP_MSG_ALLOC) &&
+	    (fi->caps & (FI_MSG | FI_TAGGED))) {
+		ret = ft_sync_inband(false);
+		if (ret)
+			return ret;
+	}
 	return ret;
 }