Changelogs PixelExperience

Changelogs:

- Sync Latest Source

- April security patch

- enable ro.hwui.render_ahead

- prop: Enable config_avoidGfxAccel

- Define TARGET_GRALLOC_HANDLE_HAS_RESERVED_SIZE

- rro_overlays: Finetune statusbar padding

- Add MALLOC_SVELTE_FOR_LIBC64

- Use foreground cpuset/uclamp for gralloc