Add GGP to Platform Support table
Add GGP to Platform Support table

Bug: angleproject:4874
Change-Id: I0a497719b00330407b5755d64153315115a95b48
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2318047
Reviewed-by: Shahbaz Youssefi <582eeec4f08a2ccd61e3ef52115e6e7c571582de@chromium.org>
Reviewed-by: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>
Commit-Queue: Shahbaz Youssefi <582eeec4f08a2ccd61e3ef52115e6e7c571582de@chromium.org>

ppy/angle,ppy/angle,ppy/angle,ppy/angle