jamvm: add license info

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/jamvm/jamvm.mk

@@ -6,6 +6,8 @@
 
 JAMVM_VERSION = 1.5.4
 JAMVM_SITE = http://downloads.sourceforge.net/project/jamvm/jamvm/JamVM%20$(JAMVM_VERSION)
+JAMVM_LICENSE = GPLv2+
+JAMVM_LICENSE_FILES = COPYING
 JAMVM_DEPENDENCIES = zlib classpath
 # int inlining seems to crash jamvm, don't build shared version of internal lib
 JAMVM_CONF_OPT = \