intel: Add new symbols to intel-symbol-check

Fixes make check.

Trivial.
diff --git a/intel/intel-symbol-check b/intel/intel-symbol-check
index fd63b37..4462533 100755
--- a/intel/intel-symbol-check
+++ b/intel/intel-symbol-check
@@ -70,6 +70,9 @@
 drm_intel_gem_bo_clear_relocs
 drm_intel_gem_bo_context_exec
 drm_intel_gem_bo_get_reloc_count
+drm_intel_gem_bo_map__cpu
+drm_intel_gem_bo_map__gtt
+drm_intel_gem_bo_map__wc
 drm_intel_gem_bo_map_gtt
 drm_intel_gem_bo_map_unsynchronized
 drm_intel_gem_bo_start_gtt_access