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

Bootanimation: Fix the low memory device oom when run boot animation

Low memory device is easily to be oom when run boot animation. Here
we do optimize the boot animation GL Texture only one frame needed.
That is free timely and re-init it again. When in boot animation,
the fps=15, so it is ok to do the delete and re-init.

CRs-Fixed: 572325
Change-Id: I1e81c3d0f3600ac895f9bd7bd00a284f3d4b7d4c

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