poco: add license information

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/poco/poco.mk

@@ -6,6 +6,8 @@
 POCO_VERSION = 1.4.3p1
 POCO_SOURCE = poco-$(POCO_VERSION)-all.tar.gz
 POCO_SITE = http://$(BR2_SOURCEFORGE_MIRROR).dl.sourceforge.net/sourceforge/poco
+POCO_LICENSE = Boost-v1.0
+POCO_LICENSE_FILES = LICENSE
 POCO_INSTALL_STAGING = YES
 
 POCO_DEPENDENCIES = zlib pcre					\