v3dv: provide implementation for vkCmdBindVertexBuffers2

Mostly equal to vkCmdBindVertexBuffers, but adding strides, that with
VK_EXT_extended_dynamic_state become dynamic, and setting pSizes.

It is worth to note that at this moment we don't use
CmdBindVertexBuffers2 pSizes.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27609>

src/broadcom/vulkan/v3dvx_cmd_buffer.c

@@ -2486,6 +2486,8 @@ v3dX(cmd_buffer_emit_gl_shader_state)(struct v3dv_cmd_buffer *cmd_buffer)
             cs_loaded_any = true;
          }
 
+         attr.stride =
+            cmd_buffer->vk.dynamic_graphics_state.vi_binding_strides[binding];
          attr.maximum_index = 0xffffff;
       }