bootanimation: allow preload the bootanimation

This patch implements one simple performance enhancement, which
might benefit devices. It is completely opt-in by setting
the following variable.

  * TARGET_BOOTANIMATION_PRELOAD: will preload the bootanimation
    zip to memory; this is handy on devices where the storage
    might be slow. By preloading it, we get quick access to the
    zip file, and the animation doesn't stutter.

Conflicts:
        cmds/bootanimation/BootAnimation.cpp

Signed-off-by: Andreas Blaesius <skate4life@gmx.de>
- picked for L, original commit only applyed partially: https://github.com/CyanogenMod/android_frameworks_base/commit/e6b54405aa70d7503a114d9c90ef7518abdd7133 >

Change-Id: Ie92d1b0aa90b43ba39c368a2a33657a60c3a64b5
bootanimation: allow using RGB565

RGB565 uses considerably less memory, and together with texture
cache, it allows us to offer a really smooth bootanimation on
not so powerful devices.

Signed-off-by: Andreas Blaesius <skate4life@gmx.de>
- changes for Android 5.0

Change-Id: Icbd6754cc608693c007ac92428e4aa711c32a59c
Frameworks: Add per app controls for LP keyguard notifications (1/2)

Nice done by google but the UX is a problem especially for ppl who are using a lot apps and just want
to see from important apps the notifications on the lockscreen.

This commit adds the ability to

- enable/disable per app the keyguard notification at all
- enable/disable per app ongoing notifications on the keyguard

We handle this over the app policy conf file like the other per app notification options.

Change-Id: I3e4641c3413ca0a8920b1680ca5f01f6eb4d0225