package/qlibc: add .hash file

Similar to jquery-keyboard, it seems the qlibc tarball on the
autobuilder is corrupt.  Fix it by adding a .hash file so it falls back to
our s.b.o mirror.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/qlibc/qlibc.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256 1f9aa5eefd28c45d409130a35104816d41405da64fe900f70a1c41150891501a  qlibc-v2.4.1.tar.gz