sw/vec: add a wrapper header log.h

Add a processor-neutral wrapper header log.h. This will be used for both
springbok and kelvin.

Change-Id: I40e8c74e18889272a32f2979e81b773ad12a2e96

springbok/include/log.h

diff --git a/springbok/include/log.h b/springbok/include/log.h
new file mode 100644
index 0000000..453b3d5
--- /dev/null
+++ b/springbok/include/log.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Wrapper header for springbok.h
+#ifndef SPRINGBOK_INCLUDE_LOG_H_
+#define SPRINGBOK_INCLUDE_LOG_H_
+
+#include <springbok.h>
+
+#endif  // SPRINGBOK_INCLUDE_LOG_H_