psmisc: add license info

Signed-off-by: Danomi Manchego <danomimanchego123@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/psmisc/psmisc.mk

@@ -6,6 +6,8 @@
 
 PSMISC_VERSION = 22.16
 PSMISC_SITE = http://$(BR2_SOURCEFORGE_MIRROR).dl.sourceforge.net/project/psmisc/psmisc
+PSMISC_LICENSE = GPLv2
+PSMISC_LICENSE_FILES = COPYING
 PSMISC_DEPENDENCIES = ncurses $(if $(BR2_NEEDS_GETTEXT_IF_LOCALE),gettext libintl)
 
 ifneq ($(BR2_TOOLCHAIN_BUILDROOT_USE_SSP),y)