virgl: use PIPE_MAX_SAMPLERS in bind_samplers_states
Virgl has been incorrectly using PIPE_MAX_SHADER_SAMPLER_VIEWS
in its encode proc, although its caller ensures that the passed num_samplers
is within PIPE_MAX_SAMPLERS
and host vrend decode also correctly validates that the bound range of samplers ids is within [0, PIPE_MAX_SAMPLERS).
Fix it in the guest driver for clarity.
virgl: use PIPE_MAX_SAMPLERS in bind_samplers_states
Fix incorrect use of PIPE_MAX_SHADER_SAMPLER_VIEWS in
virgl_bind_samplers_states.
Signed-off-by: Ryan Neph <ryanneph@google.com>