Add METADATA to skia: contains GPL=RESTRICTED
Add METADATA to skia: contains GPL=RESTRICTED

Bug: 68860345
Bug: 69058154
Bug: 151953481

Test: no code changes
Change-Id: I89bd646cab408a0429a96d4b91ef789ef4120ddf

aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia