m8: Update asserts

 * Installing is a nice thing!
 * Rename sprint to htc_m8whl

Change-Id: Ia2960dba6aa09adff63fb8d83e093256431468df
Re-enable and Update DeviceHandler for LP

Change-Id: Ic0d24263d18fd43e2f09af19c656e86c4fac72f3
m8: add market filter feature from 4.4.4

Change-Id: If55714aa8bffa326698042154e1bd7bf945d6227