glamor: Avoid using GL_QUADS on V3D

Like in 0e3f1252 ("glamor: Avoid using GL_QUADS on VC4")
this will avoid mesa to fallback doing conversion for QUADS primitives.

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
5 jobs for no-gl-quads-on-v3d in 9 minutes and 22 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Docker Image
passed debian-buster #10848918

00:03:25

 
  Build And Test
passed autotools #10848919

00:05:57

passed meson #10848920

00:02:49

passed meson-noglamor #10848921

00:02:55

passed mingw-cross-build #10848922

00:00:52