package/python-mwclient: fix legal info

Needed due to upstream commit
https://github.com/mwclient/mwclient/commit/213ecd23c77a6e60e1996a33cfafae1e467ee2ff

Fixes:
http://autobuild.buildroot.net/results/d40/d40f3a5122e758aaa5ff7b10d273908849e27bc7/

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/python-mwclient/python-mwclient.hash

@@ -2,4 +2,4 @@
 md5  148bd36bfaaf591bd9c0076cbf1ed888  mwclient-0.10.1.tar.gz
 sha256  79363dd8d12f5e3b91b92b63152bf9dfef27da786c076a244e1f148c8dd67139  mwclient-0.10.1.tar.gz
 # Locally computed
-sha256  0e713ce8e3e490bdc15ac1e59feba3009daef3fff10dd80d8baa6e5f9a294f32  LICENSE.md
+sha256  67689d1fd48a5adba31272eed653c12160dd3abbfe92ab056ac42a155e12e523  LICENSE.md