package/dosfstools: add license hash

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

package/dosfstools/dosfstools.hash

@@ -1,2 +1,5 @@
 # Locally calculated after checking pgp signature
 sha256 e6b2aca70ccc3fe3687365009dd94a2e18e82b688ed4e260e04b7412471cc173  dosfstools-4.1.tar.xz
+
+# Locally calculated
+sha256 8ceb4b9ee5adedde47b31e975c1d90c73ad27b6b165a1dcd80c7c545eb65b903  COPYING