t6: Add HTC One Max T6

* T6 HTC package version: 3.15.1540.1
* T6SPR HTC package version: 3.02.651.5
* T6VZW HTC package version: 3.08.605.1

Change-Id: I78d5c1fd563f102f0f11b676aa163f73d4d0748c