[slave.mk] record the package versions by expanding the list of dependencies (#8730)

- Why I did it
docker-orchagent was missing libsairedis version label.

E.g. Currently only swsscommon is recorded in the labels:
admin@arc-switch1038:~$ docker inspect docker-orchagent | grep versions
                "com.azure.sonic.versions.libswsscommon": "1.0.0"
With this change libsairedis is also recorded:
admin@arc-switch1038:~$ docker inspect docker-orchagent | grep versions
                "com.azure.sonic.versions.libswsscommon": "1.0.0"
                "com.azure.sonic.versions.libsairedis": "1.0.0"
- How I did it
By expanding the list of dependencies.

- How to verify it
Build and verify the label for libsairedis exists in docker-orchagent.

Signed-off-by: Stepan Blyschak <[email protected]>

Author: stepanblyschak

slave.mk

@@ -786,7 +786,10 @@ $(addprefix $(TARGET_PATH)/, $(DOCKER_IMAGES)) : $(TARGET_PATH)/%.gz : .platform
 		$(eval export $(subst -,_,$(notdir $($*.gz_PATH)))_pkgs=$(shell printf "$(subst $(SPACE),\n,$(call expand,$($*.gz_APT_PACKAGES)))\n" | awk '!a[$$0]++'))
 		if [ -d $($*.gz_PATH)/cli-plugin-tests/ ]; then pushd $($*.gz_PATH)/cli-plugin-tests; pytest-$($(SONIC_UTILITIES_PY3)_PYTHON_VERSION) -v $(LOG); popd; fi
 		# Label docker image with componenets versions
-		$(eval export $(subst -,_,$(notdir $($*.gz_PATH)))_labels=$(foreach component,$($*.gz_DEPENDS) $($*.gz_PYTHON_DEBS) $($*.gz_PYTHON_WHEELS),\
+		$(eval export $(subst -,_,$(notdir $($*.gz_PATH)))_labels=$(foreach component,\
+			$(call expand,$($*.gz_DEPENDS),RDEPENDS) \
+			$(call expand,$($*.gz_PYTHON_DEBS)) \
+			$(call expand,$($*.gz_PYTHON_WHEELS)),\
 			$(shell [[ ! -z "$($(component)_VERSION)" && ! -z "$($(component)_NAME)" ]] && \
 				echo "--label com.azure.sonic.versions.$($(component)_NAME)=$($(component)_VERSION)")))
 		j2 $($*.gz_PATH)/Dockerfile.j2 > $($*.gz_PATH)/Dockerfile