Unsolicited informational event should not be put in the response queue. It...

Unsolicited informational event should not be put in the response queue. It can break e.g. the reading of the asec list returned from vold - package manager then assumes no secure containers on sdcard, which can result in system_server being killed by vold during sdcard unmount, in case it keeps a recently run pkg.apk file in an asec opened.

Change-Id: I068d8ef8cd244fde03f08b1f6b3f920eb9135aaf