intel: move xglCmd{Begin,End}RenderPass to cmd_pipeline.c

All xglCmd*() functions should be defined in cmd*.c.
diff --git a/icd/intel/cmd.c b/icd/intel/cmd.c
index 281e8a5..67cddf5 100644
--- a/icd/intel/cmd.c
+++ b/icd/intel/cmd.c
@@ -331,7 +331,7 @@
             break;
         case XGL_STRUCTURE_TYPE_CMD_BUFFER_GRAPHICS_BEGIN_INFO:
             ginfo = (XGL_CMD_BUFFER_GRAPHICS_BEGIN_INFO *) next;
-            intel_cmd_begin_render_pass(cmd,  (struct intel_render_pass *)
+            cmd_begin_render_pass(cmd,  (struct intel_render_pass *)
                                         ginfo->renderPass);
             break;
         default: