Merge "add config flag for runtime color filter api" into main

package: "com.android.graphics.hwui.flags"

container: "system"

flag {

  name: "runtime_color_filters_blenders"

  namespace: "core_graphics"

  description: "API for AGSL authored runtime color filters and blenders"

  bug: "358126864"

}

flag {

  name: "clip_shader"

  is_exported: true