license: cleanup: add SPDX Apache-2.0 license identifier
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>
diff --git a/doc/application/application-kconfig.include b/doc/application/application-kconfig.include
index 0227be6..42da057 100644
--- a/doc/application/application-kconfig.include
+++ b/doc/application/application-kconfig.include
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
mainmenu "Your Application Name"
# Your application configuration options go here
