BootAnimation: Play boot/shutdown animation and music

Add support to show customized boot and shut down animation, as
well as music.

Change-Id: I69c87640175a96a18833a763a34afd362bbfb487
Conflicts:
cmds/bootanimation/Android.mk
cmds/bootanimation/BootAnimation.cpp

bootanimtion: fix no boot sound due to error file descriptor

-wrong file descriptor passed to setDataSource(fd, offset, length)
 API and causes no sound
-use the default setDataSource(httpService,url,header) to parse
 the file of boot sound

CRs-Fixed: 731547

Change-Id: I437e7d797cd13b7f8f8e0fbf81d5de99c55c27d1

bootanimation: Only try to shutdown the mediaplayer if it was prepared

The bootanimation tries to shutdown the mediaplayer gracefully by waiting
on an asynchronous shutdown event for 5 seconds.

If, however, there is no boot sound, that asynchronous shutdown event will
never happen and the animation will be stopped for 5 seconds before shutting
down.

Visibly, this fixes the issue where the bootanimation would simply stop near
the end for exactly 5 seconds.

Change-Id: I77f5631368c7d9b9fef7941a6278af9c36032044

bootanimation: Fix compilation warnings

Change-Id: Iaf7e66811f3cecf8b5b1fa690941489a7a07f7fd

bootanimation: Move the bootanimation playaudio code

Move the bootanimation playaudio code, so that the audio plays
after the boot animation, because the audio manager is not ready and races
with the boot animation, if they the audio and boot animation play
together and makes the boot animation stutter.

SAMOSA-10

Change-Id: I56ab19ec06a4af2de84916cdc330e646dd5a8695
(cherry picked from commit 9ccd0254)

bootanimation: Use CLOCK_MONTONIC for pthread

Use CLOCK_REALTIME can mess up the pthread timed
wait if system clock changes.

Change-Id: I7e14958460ccd1ecd8c9aa3cdfa4e60dd2a083ec

[mikeioannina]: Adjust for cm-14.0

Change-Id: I437e7d797cd13b7f8f8e0fbf81d5de99c55c27d1