usb:host:usb devices can be detected but can't work when boot up

usb:host:usb devices can be detected but can't work when boot up
         system with Hub&keyboard&mouse connected

BZ: 19184

When registering a new composite driver in system start up, pull up D+ will
be called.USBCMD registers will be changed and host controller will be halt.
This will lead to host controller halt in a_host mode.

Change-Id: I82076437c9eb9e115f98102653fb3a0861943de8
Reviewed-on: http://android.intel.com:8080/32475
Reviewed-by: Wang, Feng A <feng.a.wang@intel.com>
Reviewed-by: Zhuang, Jin Can <jin.can.zhuang@intel.com>
Reviewed-by: Tang, Richard <richard.tang@intel.com>
Reviewed-by: Gross, Mark <mark.gross@intel.com>
Tested-by: Sun, Jianhua <jianhua.sun@intel.com>
Reviewed-by: Wu, Hao <hao.wu@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>