[Backport to 1.20] 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 (cherry picked from commit 9adb13e2)