Closing out the iMX Android platform....for now

Hey team,

We've been asked by Alexander and Joe to focus on other targets for awhile. This means that the iMX53 and iMX6 work that we've done will stay in its current state. Practically this means:

1. No updates to iMX based manifest (we'll delete the MX manifests from linaro_android_4.0.4 to make this clean) 2. No bug fixes 3. No daily builds

The builds we currently have will stick around.

Anyhow, this will allow us to refocus on less, which is good.

I'd really like to thank Bero, who's awesome work on the MX allowed this board to run in the first place and who's work keeping it going has be extremely valuable to Linaro.

Close out tasks are tracked at:

https://blueprints.launchpad.net/linaro-android/+spec/close-out-imx