package/ninja: add hash for license files

Signed-off-by: Adam Duskett <Aduskett@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/ninja/ninja.hash

@@ -1,2 +1,3 @@
 # Locally generated
 sha256 5d7ec75828f8d3fd1a0c2f31b5b0cea780cdfe1031359228c428c1a48bfcd5b9 ninja-v1.9.0.tar.gz
+sha256 eb7e9ab9690124c5c9f42bdc81383d886a3dede26345b6ed15bbad7caf81f7ea COPYING