Fix bug of generating OpenCL kernel source file.

repository/opencl-kernel/opencl_kernel_configure.bzl

@@ -21,10 +21,9 @@ def _opencl_encrypt_kernel_impl(repository_ctx):
     if ret.return_code == 0:
         unused_var = repository_ctx.path(Label("//:.git/refs/heads/master"))
 
-    ret = repository_ctx.execute(
-        ["test", "-f", "%s/mace/ops/opencl/cl/common.cl" % mace_root_path],
+    repository_ctx.execute(
+        ["test", "-f", "%s/mace/ops/opencl/cl/common.h" % mace_root_path],
     )
-    if ret.return_code == 0:
     unused_var = repository_ctx.path(Label("//:mace/ops/opencl/cl/activation.cl"))
     unused_var = repository_ctx.path(Label("//:mace/ops/opencl/cl/addn.cl"))
     unused_var = repository_ctx.path(Label("//:mace/ops/opencl/cl/batch_norm.cl"))