package/mtools: add license hash

Signed-off-by: Adam Duskett <Aduskett@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/mtools/mtools.hash

@@ -1,2 +1,5 @@
 # Locally calculated after checking pgp signature
 sha256	59e9cf80885399c4f229e5d87e49c0c2bfeec044e1386d59fcd0b0aead6b2f85	mtools-4.0.18.tar.bz2
+
+# Locally calculated
+sha256	8ceb4b9ee5adedde47b31e975c1d90c73ad27b6b165a1dcd80c7c545eb65b903	COPYING