Uptream Vivante and VMWare vendor ID recognition. Case-insensitively alphabetize the IDs and helper functions. Bug: angleproject:6839 Change-Id: Ib6746b3e6a8858e85b70c04424093ddbd02285fc Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3684955 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Kenneth Russell <kbr@chromium.org> Reviewed-by: Gregg Tavares <gman@chromium.org>