vrend,features: Corrext typo in GL_KHR_robust_buffer_access_behavior

With this change the extansion is recognized and KHR_robustness exposed
in the guest.

v2: remove debug_printfs (Erik)

Closes: #9

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>

src/vrend_renderer.c

@@ -185,7 +185,7 @@ static const  struct {
    [feat_nv_conditional_render] = { UNAVAIL, UNAVAIL, { "GL_NV_conditional_render" } },
    [feat_nv_prim_restart] = { UNAVAIL, UNAVAIL, { "GL_NV_primitive_restart" } },
    [feat_polygon_offset_clamp] = { 46, UNAVAIL, { "GL_ARB_polygon_offset_clamp" } },
-   [feat_robust_buffer_access] = { 43, UNAVAIL, { "GL_ARB_robust_buffer_access_behaviour" } },
+   [feat_robust_buffer_access] = { 43, UNAVAIL, { "GL_ARB_robust_buffer_access_behavior", "GL_KHR_robust_buffer_access_behavior" } },
    [feat_sample_mask] = { 32, 31, { "GL_ARB_texture_multisample" } },
    [feat_sample_shading] = { 40, 32, { "GL_ARB_sample_shading", "GL_OES_sample_shading" } },
    [feat_samplers] = { 33, 30, { "GL_ARB_sampler_objects" } },