nouveau: bump required libdrm version to 2.4.66

v2. forgot bump for non-gallium driver

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Tested-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
diff --git a/configure.ac b/configure.ac
index 7eb3d20..f8a70be 100644
--- a/configure.ac
+++ b/configure.ac
@@ -72,8 +72,8 @@
 LIBDRM_RADEON_REQUIRED=2.4.56
 LIBDRM_AMDGPU_REQUIRED=2.4.63
 LIBDRM_INTEL_REQUIRED=2.4.61
-LIBDRM_NVVIEUX_REQUIRED=2.4.33
-LIBDRM_NOUVEAU_REQUIRED=2.4.62
+LIBDRM_NVVIEUX_REQUIRED=2.4.66
+LIBDRM_NOUVEAU_REQUIRED=2.4.66
 LIBDRM_FREEDRENO_REQUIRED=2.4.65
 DRI2PROTO_REQUIRED=2.6
 DRI3PROTO_REQUIRED=1.0