Update aio.yaml to reorder functions and ensure consistency in POSIX documentation

Author: StarOne01

libc/utils/docgen/aio.yaml

@@ -17,30 +17,30 @@ macros:
     in-latest-posix: ''
 
 functions:
-  aio_fildes:
-    in-latest-posix: ''
-  aio_offset:
-    in-latest-posix: ''
   aio_buf:
     in-latest-posix: ''
-  aio_nbytes:
+  aio_cancel:
     in-latest-posix: ''
-  aio_reqprio:
+  aio_error:
     in-latest-posix: ''
-  aio_sigevent:
+  aio_fildes:
     in-latest-posix: ''
-  aio_lio_opcode:
+  aio_fsync:
     in-latest-posix: ''
-  aio_cancel:
+  aio_lio_opcode:
     in-latest-posix: ''
-  aio_error:
+  aio_nbytes:
     in-latest-posix: ''
-  aio_fsync:
+  aio_offset:
     in-latest-posix: ''
   aio_read:
     in-latest-posix: ''
+  aio_reqprio:
+    in-latest-posix: ''
   aio_return:
     in-latest-posix: ''
+  aio_sigevent:
+    in-latest-posix: ''
   aio_suspend:
     in-latest-posix: ''
   aio_write: