procfs: Fix incorrect uptime with CONFIG_SYSTEM_TIME64

Jira: PDFW15IS-45
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

fs/procfs/fs_procfsuptime.c

@@ -265,7 +265,11 @@ static ssize_t uptime_read(FAR struct file *filep, FAR char *buffer,
 
       /* Convert the seconds + hundredths of seconds to a string */
 
+#ifdef CONFIG_SYSTEM_TIME64
+      linesize = snprintf(attr->line, UPTIME_LINELEN, "%7llu.%02u\n", sec, csec);
+#else
       linesize = snprintf(attr->line, UPTIME_LINELEN, "%7lu.%02u\n", sec, csec);
+#endif
 
 #endif
       /* Save the linesize in case we are re-entered with f_pos > 0 */