Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier. Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.
By default all files without license information are under the default
license of Zephyr, which is Apache version 2.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Based on prior work by @dcpleung. It's suboptimal, but it provides a
working starting point for ACRN work. The x86 board/SoC abstractions
really need to be refactored to make this "board" (and other x86-based
"boards", both extant and future) cleaner and easier to maintain. Punt.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>