package/dhcp: inform about omshell in the help message

Document that along with the server we install omshell, an interactive
tool to connect to, query, and possibly change, the server's state via
the Object Management API (OMAPI).

Signed-off-by: Carlos Santos <unixmania@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/dhcp/Config.in

@@ -17,6 +17,10 @@ config BR2_PACKAGE_DHCP_SERVER
 	help
 	  DHCP server from the ISC DHCP distribution.
 
+	  This also installs omshell, an interactive tool to connect to,
+	  query, and possibly change, the server's state via the Object
+	  Management API (OMAPI).
+
 config BR2_PACKAGE_DHCP_SERVER_DELAYED_ACK
 	bool "Enable delayed ACK feature"
 	depends on BR2_PACKAGE_DHCP_SERVER