Fix format string not appropriate warning for cause.flag.
nsh_syscmds.c: In function 'cmd_reset_cause':
nsh_syscmds.c:513:24: error: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'uint32_t' {aka 'unsigned int'} [-Werror=format=]
513 | nsh_output(vtbl, "%s(%lu)\n",
| ^~~~~~~~~~~
514 | g_resetcause[cause.cause], cause.flag);
| ~~~~~~~~~~
| |
| uint32_t {aka unsigned int}
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>