module/event: add SIGUSR1 in spdk_kill_instance

Change-Id: I6d2384203efcb4024448aac17ea91ec73b4f23f7
Signed-off-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2445
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>

module/event/rpc/app_rpc.c

@@ -71,6 +71,7 @@ rpc_spdk_kill_instance(struct spdk_jsonrpc_request *request,
 		{"SIGQUIT",	SIGQUIT},
 		{"SIGHUP",	SIGHUP},
 		{"SIGKILL",	SIGKILL},
+		{"SIGUSR1",	SIGUSR1},
 	};
 	size_t i, sig_count;
 	int signal;