Add license info to ccrypt, haveged, rng-tools, vsftpd

I added license info to those packages that I have imported here.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

net/vsftpd/Makefile

@@ -14,6 +14,7 @@ PKG_RELEASE:=4
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://security.appspot.com/downloads/
 PKG_MD5SUM:=8b00c749719089401315bd3c44dddbb2
+PKG_LICENSE:=GPLv2
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
 

utils/ccrypt/Makefile

@@ -15,6 +15,7 @@ PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=@SF/ccrypt
 PKG_MD5SUM:=44ddd763465c254df83f5d38851d04d7
 PKG_MAINTAINER:=Hannu Nyman <hannu.nyman@iki.fi>
+PKG_LICENSE:=GPLv2+
 
 PKG_FIXUP:=autoreconf
 

utils/haveged/Makefile

@@ -15,6 +15,7 @@ PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://www.issihosts.com/$(PKG_NAME) \
 	http://pkgs.fedoraproject.org/repo/pkgs/haveged/haveged-1.9.1.tar.gz/015ff58cd10607db0e0de60aeca2f5f8/
 PKG_MD5SUM:=015ff58cd10607db0e0de60aeca2f5f8
+PKG_LICENSE:=GPLv3
 
 #ensure this is consistent with the dir in the tarball!!!
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)

utils/rng-tools/Makefile

@@ -14,6 +14,7 @@ PKG_RELEASE:=1
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=@SF/gkernel/rng-tools/$(PKG_VERSION)/
 PKG_MD5SUM:=6726cdc6fae1f5122463f24ae980dd68
+PKG_LICENSE:=GPLv2
 PKG_MAINTAINER:=Hannu Nyman <hannu.nyman@iki.fi>
 
 PKG_FIXUP:=autoreconf