vde2: add hashes for license files

Signed-off-by: Adam Duskett <aduskett@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/vde2/vde2.hash

@@ -1,2 +1,5 @@
 # Locally computed:
 sha256  cbea9b7e03097f87a6b5e98b07890d2275848f1fe4b9fcda77b8994148bc9542  vde2-2.3.2.tar.bz2
+sha256  fb295d0c24b8ef4b39017ac68e772e8e6e839612ce10da12b9f48d1e8e512e2e  COPYING
+sha256  5df07007198989c622f5d41de8d703e7bef3d0e79d62e24332ee739a452af62a  COPYING.libvdeplug
+sha256  d5ac74315b2d2f9c53f5839e311484f4646a9401b68d02d36f3dab386352e74d  COPYING.slirpvde