display: Properly handle NO_IOMMU case

 * Enable it by default for msm8660 too.

Change-Id: Icbd5de1e7f020285ff6101c34286ca8863b11040
libhwcomposer: Log and dump app layers of screen frames

Log a frame-by-frame succession of HWComposer layers' data and write
their buffers, if any, into raw or png files based on system property
values.

Change-Id: Icceccf5fff5ab4d78dbc6c28c11210b8837ddfd9
display: Clean up binder interface

The current binder implementation is inflexible when it comes to
adding new input/output parameters. It also needs a lot of
boilerplate code written when adding a simple enable/disable type
command.

Instead, let clients specify the parcels they want to pass and
unparcel them at the end points only.
Please note that it is assumed that all commands coming in
need the same permission checks. If this is no longer the case,
some commands need to be split out on the receiver end in
IQService.cpp.
This change also simplifies the code end clients need to write.
They should be able to include QServiceUtils and call a single
function to set the binder up and make the call.

Change-Id: I4db66f2427ecf16d7a6264462ae85815217a16b1
qdutils: Add display config to qdutils

This API is meant for system level users that need to get/set
various display attributes that are normally not available via
the regular Android framework channels.
Initially the APIs exposed are to check HDMI status, get display
attributes and set HSIC data.
Only physically connected displays are supported for now.

Change-Id: Ia783ce2ab0c4599a54c992171e01e2f0504550dc
hwc: Calculate viewframe from layers display frame information.

Calculate view frame of  each display from the displayframe of all
the application layers.

Change-Id: I9ba4076b7b4419bd3559417fad28b4e1de6acff3
hwc: Add binder interface to get the visibleRegion

- This binder interface can be used by clients to know the
  active visible region for a display(pri/ext/virt)
- When external orientation is used, return the destFrame of
  the FrameBuffer layer, as its the viewFrame

Change-Id: I7cfd149c76c16b9a3031103c89b1932d44bcbecd