There's no need to have separate build scripts here, just choose what the
DEQP_TARGET is for the particular container being built. This brings in a
tremendous number of GLES test fixes that haven't made it into a tagged
gles CTS release.
Closes: #2056
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6526>