lxc: install also in staging

Install also lxc in staging directory, this will be needed for the
incoming integration of lxd package. Moreover, other packages could
find useful to integrate with liblxc instead of using lxc-xxx binaries.

Signed-off-by: Fabrice Fontaine <fabrice.fontaine@orange.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/lxc/lxc.mk

@@ -9,6 +9,7 @@ LXC_SITE = https://linuxcontainers.org/downloads/lxc
 LXC_LICENSE = LGPLv2.1+
 LXC_LICENSE_FILES = COPYING
 LXC_DEPENDENCIES = libcap host-pkgconf
+LXC_INSTALL_STAGING = YES
 # we're patching configure.ac
 LXC_AUTORECONF = YES