package/ecryptfs-utils: add hash for license file

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/ecryptfs-utils/ecryptfs-utils.hash

@@ -2,3 +2,4 @@
 md5 83513228984f671930752c3518cac6fd  ecryptfs-utils_111.orig.tar.gz
 # Locally computed
 sha256 112cb3e37e81a1ecd8e39516725dec0ce55c5f3df6284e0f4cc0f118750a987f  ecryptfs-utils_111.orig.tar.gz
+sha256 91df39d1816bfb17a4dda2d3d2c83b1f6f2d38d53e53e41e8f97ad5ac46a0cad  COPYING