Vulkan: enable some vertex data tests. Enable tests that don't use fixed or unnormalized short/byte vertex data, with some exceptions for Android and AMD. BUG=angleproject:2405 Change-Id: I9e37ebca3a873617f11fee065b7a0ba67f80998c Reviewed-on: https://chromium-review.googlesource.com/1111317 Commit-Queue: Frank Henigman <fjhenigman@chromium.org> Reviewed-by: Luc Ferron <lucferron@chromium.org>