Use rgba8888d24s8 config for dEQP tests.

dEQP tests will now always run with rgba8888d24s8 framebuffer.
This is required to be able to always test depth and stencil operations.

rgba8888d24s8 config should be available for all GLES3 devices.

Bug: 17388917
Change-Id: Ib5fc31d0023cd30f480991bc6dd350c722dbaec9
2 files changed