.ostc-ci: use $OHOS_RUNNER_TAG on blueprint jobs

With the introduction of $OHOS_RUNNER_TAG on the manifest repository, we
can now reliably add a custom tag to all bitbake builds that do not
customize the tag list.

Use the new tag on the two jobs which provide a custom list to be able
to redirect them to a special runner as well.

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@huawei.com>

.ostc-ci/machines-and-flavours.yaml

@@ -130,7 +130,7 @@ blueprint-smartpanel-zephyr:
 
 blueprint-smartpanel-linux:
   extends: .build-linux
-  tags: [large-disk, bitbake-friendly, heavy]
+  tags: [large-disk, bitbake-friendly, heavy, $OHOS_RUNNER_TAG]
   variables:
     MACHINE: stm32mp1-av96
     DISTRO: allscenarios-linux-blueprint-dashboard
@@ -138,7 +138,7 @@ blueprint-smartpanel-linux:
 
 blueprint-gateway-linux:
   extends: .build-linux
-  tags: [large-disk, bitbake-friendly, heavy]
+  tags: [large-disk, bitbake-friendly, heavy, $OHOS_RUNNER_TAG]
   variables:
     MACHINE: raspberrypi4-64
     DISTRO: allscenarios-linux-blueprint-gateway