Expose transform surface control in wallpaper service

Expose a special surface control that could be used
to transform wallpaper in the wallpaper service.

This surface control is needed when sending buffers
directly to wallpaper's surface. Using this surface control
wallpapers can perform transformations without updating
the buffer.

Test: atest WallpaperTransformTest
Flag: android.app.enable_wallpaper_transform_surface_control_command
Bug: 399077623
Change-Id: I78b394ff5d199b6741907f5ff3a879796d6d20d1