libraw: add hash file

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libraw/libraw.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256	588caf5324c76240d6370852691e05ac8ef89428ee8d45168f15ce47422bc36b  LibRaw-0.13.4.tar.gz