package/matchbox: add hash for license file

Add hash for license file, add sha256 for tarball and update indentation
for hash file (two spaces)

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 7f59e2c01a78c99c933df49ee681cdd3e11f4b07)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/matchbox/matchbox.hash

@@ -1,2 +1,6 @@
 # From http://downloads.yoctoproject.org/releases/matchbox/matchbox-window-manager/1.2/matchbox-window-manager-1.2.tar.bz2.md5
-md5	3e158dcf57823b55c926d95b245500fb	matchbox-window-manager-1.2.tar.bz2
+md5  3e158dcf57823b55c926d95b245500fb  matchbox-window-manager-1.2.tar.bz2
+
+# Locally computed
+sha256  81a23a4af797cf350759fd5ac738797015a66dd5dba2f3d9f3c6908506c1ceff  matchbox-window-manager-1.2.tar.bz2
+sha256  231f7edcc7352d7734a96eef0b8030f77982678c516876fcb81e25b32d68564c  COPYING