dhcp: install to staging

Install dhcp to staging so other applications can use its include files
and libraries.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/dhcp/dhcp.mk

@@ -6,6 +6,7 @@
 
 DHCP_VERSION = 4.1-ESV-R8
 DHCP_SITE = http://ftp.isc.org/isc/dhcp/$(DHCP_VERSION)
+DHCP_INSTALL_STAGING = YES
 DHCP_LICENSE = ISC
 DHCP_LICENSE_FILES = LICENSE
 DHCP_CONF_ENV = ac_cv_file__dev_random=yes