lib/oe/sbom30: Prefix aliases with "http://spdx.org/spdxdocs/"

While the SPDX ID aliases are primarily intended for internal use by the
SPDX code, they are used in places where a valid SPDX ID is expected. In
order to make sure that they still conform to this, prefix them with
"http://spdx.org/spdxdocs/openembedded-alias"

(From OE-Core rev: 5e0ff36e025f5e842fa90b8219b53257d65ea66a)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oe/sbom30.py

@@ -344,7 +344,9 @@ class ObjectSet(oe.spdx30.SHACLObjectSet):
                 alias_ext = set_alias(
                     e,
                     e._id.replace(unihash, "UNIHASH").replace(
-                        namespace, self.d.getVar("PN")
+                        namespace,
+                        "http://spdx.org/spdxdocs/openembedded-alias/"
+                        + self.d.getVar("PN"),
                     ),
                 )