overlay: trebuchet: enable workspaceDefaultWallpaperHack
audio: policy: add OUT_DGTL_DOCK_HEADSET and OUT_ANLG_DOCK_HEADSET

-reference d2 and pio_masaki
p4-common: set ARCH_ARM_USE_NON_NEON_MEMCPY

-reference star
overlay: set safe_media_volume_index to 6

-reference grouper
touchscreen: change touch.size.calibration to default
Improve bootanimation performance
Start using inline kernel building
Enable TWRP building

Change-Id: I2707db0c0e86a6973796c771f8cd267873fe34b0