Rename crypto package in setup.py

Renaming from "python-crypto" to "pycrypto", since the latter is the
package from pip. Otherwise, tox would fail when attempting to
download "python-crypto".

Change-Id: I8b8948469e26d92887d259303dcb79eef333395e
Signed-off-by: Igor D.C <igor.duarte.cardoso@intel.com>
diff --git a/setup.py b/setup.py
index a34c708..4fa3273 100755
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@
     "boto",
     #"lib_osm_openvim",
     #"osm_im",
-    "python-crypto",
+    "pycrypto",
 ]
 
 setup(name=_name,