change dalvik config

Change-Id: Ie12e9c52d7eba1c52cc07d1fb70c1d8710b5475d
Merge branch 'jb-mr1' of git://github.com/KFire-Android/android_device_amazon_jem into jb-mr1
remove compat line -- no 2.6 kernels for jem

Change-Id: I0760e5b9aa03b222339cf423d4242202ac51c209