bitbake: Add initial pass of SPDX license headers to source code

This adds the SPDX-License-Identifier license headers to the majority of
our source files to make it clearer exactly which license files are under.

The bulk of the files are under GPL v2.0 with one found to be under V2.0
or later, some under MIT and some have dual license. There are some files
which are potentially harder to classify where we've imported upstream code
and those can be handled specifically in later commits.

The COPYING file is replaced with LICENSE.X files which contain the full
license texts.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

3 files changed, 12 insertions, 0 deletions

diff --git a/lib/prserv/__init__.py b/lib/prserv/__init__.py
index c3cb73ad9..9961040b5 100644
--- a/lib/prserv/__init__.py
+++ b/lib/prserv/__init__.py
@@ -1,3 +1,7 @@
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
 __version__ = "1.0.0"
 
 import os, time
diff --git a/lib/prserv/db.py b/lib/prserv/db.py
index 495d09f39..d6188a679 100644
--- a/lib/prserv/db.py
+++ b/lib/prserv/db.py
@@ -1,3 +1,7 @@
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
 import logging
 import os.path
 import errno
diff --git a/lib/prserv/serv.py b/lib/prserv/serv.py
index 6a99728c4..be3acec36 100644
--- a/lib/prserv/serv.py
+++ b/lib/prserv/serv.py
@@ -1,3 +1,7 @@
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
 import os,sys,logging
 import signal, time
 from xmlrpc.server import SimpleXMLRPCServer, SimpleXMLRPCRequestHandler