Add label 'app.starlingx.io/component=platform'

The oran-o2 platform application must mark its namespace and/or
pods with the "app.starlingx.io/component=platform" label in order
to ensure that Kubernetes knows to run it on the platform cores.

Since the upstream chart does not support this yet, an interim build
method must be used to test until the reference in the application is
updated to the new version of the chart, ETA June 2023.

To build using a commit that support this until then:
diff --git a/stx-oran-o2-helm/debian/meta_data.yaml b/stx-oran-o2-helm/debian/meta_data.yaml
index 6ba9683..01de152 100644

Change-Id: Ic7116f356968087adaa574765453b3cbfdf80a7a
--- a/stx-oran-o2-helm/debian/meta_data.yaml
+++ b/stx-oran-o2-helm/debian/meta_data.yaml
@@ -5,8 +5,8 @@ src_path: stx-oran-o2-helm
 dl_files:
   oran-o2-2.0.0_g39e022d7.tar.gz:
     topdir: pti-o2-2.0.0
-    url: 39e022d709.tar.gz
-    md5sum: b9dc448c4dbea0e5ad5f5702319eb24f
+    url: 34244dc4e3.tar.gz
+    md5sum: fd1b2521c864a9f2926bec6942ebf899
 revision:
   dist: $STX_DIST
   GITREVCOUNT:

Then run:
stx build -c "downloader"
stx shell -c "build-pkgs -c -p stx-oran-o2-helm,python3-k8sapp-oran-o2"

TEST PLAN
PASS: Upload and apply oran-o2 application
PASS: Verify oran-o2 pods have correct labels

Story: 2010648
Task: 47660
Signed-off-by: Joshua Kraitberg <joshua.kraitberg@windriver.com>
Change-Id: I2b14002e5c482fb6ccd0a9296f0b57f6b547e247

stx-oran-o2-helm/stx-oran-o2-helm/fluxcd-manifests/oran-o2/oran-o2-static-overrides.yaml

@@ -1,9 +1,13 @@
 #
-# Copyright (c) 2022 Wind River Systems, Inc.
+# Copyright (c) 2022-2023 Wind River Systems, Inc.
 #
 # SPDX-License-Identifier: Apache-2.0
 #
 
+# Ensure pods run on platform cores
+podLabels:
+  app.starlingx.io/component: platform
+
 # ImagePullSecrets for operator ServiceAccount, list of secrets in the same
 # namespace used to pull operator image. Must be set for any cluster configured
 # with private docker registry.