vc4: Avoid negative scissor caused by no intersection
This fixes 6 tests that were crashing on VC4 since EGL_KHR_swap_buffers_with_damage was enabled.
dEQP-EGL.functional.swap_buffers_with_damage.*.buffer_age_render`
Cc: 20.2
This fixes 6 tests that were crashing on VC4 since EGL_KHR_swap_buffers_with_damage was enabled.
dEQP-EGL.functional.swap_buffers_with_damage.*.buffer_age_render`
Cc: 20.2