dey-image-container-manager: restore hotplug support

Package recommendations are disable, so some recommended packages might
be missed.
For HW detecting add the next explicit packages, which solves the
microSD card detection.

https://onedigi.atlassian.net/browse/DEL-10042

Signed-off-by: Isaac Hermida <isaac.hermida@digi.com>

meta-digi-containers/recipes-core/images/dey-image-container-manager.bb

@@ -77,10 +77,19 @@ CONTAINER_MANAGEMENT = " \
 	podman-trimmed \
 "
 
+# Keep the systemd/udev hotplug support packages that are otherwise
+# dropped when recommendations are disabled.
+HOTPLUG_SUPPORT = " \
+	systemd-conf \
+	systemd-extra-utils \
+	udev-hwdb \
+"
+
 NO_RECOMMENDATIONS = "1"
 
 IMAGE_INSTALL = " \
 	${CORE_ESSENTIALS} \
 	${CORE_TOOLS} \
 	${CONTAINER_MANAGEMENT} \
+	${HOTPLUG_SUPPORT} \
 "