benchmarks/Makefile: Don't build benchmarks that depend on libdrm_intel

Use the HAS_INTEL automake flag to avoid building benchmarks that won't
compile unless libdrm_intel is available in the build system.

Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
3 files changed