[meta-virtualization][PATCH] podman: Fix QA error for invalid PACKAGECONFIG

["Theodore A. Roth" <troth@openavr.org>]

The insane.bbclass now flags as errors when PACKAGECONFIG contains a
value that does not have a setting.

For example, setting a value like this:

    PACKAGECONFIG += "foo"

without something like this in the recipe:

    PACKAGECONFIG[foo] = "stuff"

will result in QA errors like the following:

    ERROR: podman-v5.4.1-r0 do_recipe_qa: QA Issue: podman:
           invalid PACKAGECONFIG(s): docker rootless [invalid-packageconfig]
    ERROR: podman-v5.4.1-r0 do_recipe_qa: Fatal QA errors were found, failing task.

Signed-off-by: Theodore A. Roth <troth@openavr.org>
Signed-off-by: Theodore A. Roth <theodore_roth@trimble.com>
---
 recipes-containers/podman/podman_git.bb | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/recipes-containers/podman/podman_git.bb b/recipes-containers/podman/podman_git.bb
index be85e512..9f886ed4 100644
--- a/recipes-containers/podman/podman_git.bb
+++ b/recipes-containers/podman/podman_git.bb
@@ -70,6 +70,9 @@ EXTRA_OEMAKE = " \
 # packageconfig, the podman package will rconfict with docker.
 PACKAGECONFIG ?= "docker"
 
+PACKAGECONFIG[docker] ?= ""
+PACKAGECONFIG[rootless] ?= ""
+
 do_compile() {
 	cd ${S}/src
 	rm -rf .gopath
-- 
2.34.1