[PATCH 2/9] add target_ops fields use_agent and can_use_agent

[Eli Zaretskii]

> From: Yao Qi <yao@codesourcery.com>
> Date: Fri, 17 Feb 2012 10:54:53 +0800
> 
> 2012-02-15  Yao Qi  <yao@codesourcery.com>
> 
> 	* gdb.texinfo (General Query Packets): Add packet `QAgent'.

OK for this part, thanks.