Update manifest to L0 loader 1.7.15

Signed-off-by: Brandon Yates <brandon.yates@intel.com>

Author: bmyates

manifests/manifest.yml

@@ -36,7 +36,7 @@ components:
     dest_dir: level_zero
     type: git
     branch: master
-    revision: v1.7.9
+    revision: v1.7.15
     repository: https://github.com/oneapi-src/level-zero
   libva:
     dest_dir: libva