libs/libc/aio: fix aio_cancel compatible issue

1. make the aio_cancel implementation can pass the
ltp/open_posix_testsuite/aio_cancel testcases
2. the modification are referred to https://pubs.opengroup.org/onlinepubs/9699919799/functions/aio_cancel.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>

libs/libc/unistd/lib_sysconf.c

@@ -215,6 +215,14 @@ long sysconf(int name)
 
   switch (name)
     {
+#ifdef CONFIG_FS_AIO
+      case _SC_ASYNCHRONOUS_IO:
+        return _POSIX_ASYNCHRONOUS_IO;
+#endif
+      case _SC_PRIORITIZED_IO:
+        return _POSIX_PRIORITIZED_IO;
+      case _SC_AIO_MAX:
+        return _POSIX_AIO_MAX;
       case _SC_CLK_TCK:
         return CLOCKS_PER_SEC;