xcb-util-wm: add license file

Signed-off-by: Danomi Manchego <danomimanchego123@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/x11r7/xcb-util-wm/xcb-util-wm.hash

@@ -1,2 +1,4 @@
 # From http://lists.x.org/archives/xorg-announce/2014-February/002401.html
 sha256	28bf8179640eaa89276d2b0f1ce4285103d136be6c98262b6151aaee1d3c2a3f	xcb-util-wm-0.4.1.tar.bz2
+# License file, locally calculated
+sha256	12ab3559977a4b22ae3030b90c64a386e6ec51ab0e4eab1ff530f81a2639400a	COPYING

package/x11r7/xcb-util-wm/xcb-util-wm.mk

@@ -9,6 +9,7 @@ XCB_UTIL_WM_SITE = http://xcb.freedesktop.org/dist
 XCB_UTIL_WM_SOURCE = xcb-util-wm-$(XCB_UTIL_WM_VERSION).tar.bz2
 XCB_UTIL_WM_INSTALL_STAGING = YES
 XCB_UTIL_WM_LICENSE = MIT
+XCB_UTIL_WM_LICENSE_FILES = COPYING
 XCB_UTIL_WM_DEPENDENCIES = libxcb
 
 $(eval $(autotools-package))