tools: binman: install btool

btool is needed after install binman to system.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
diff --git a/tools/binman/setup.py b/tools/binman/setup.py
index 5ed94ab..9a9206e 100644
--- a/tools/binman/setup.py
+++ b/tools/binman/setup.py
@@ -5,7 +5,7 @@
       version='1.0',
       license='GPL-2.0+',
       scripts=['binman'],
-      packages=['binman', 'binman.etype'],
+      packages=['binman', 'binman.etype', 'binman.btool'],
       package_dir={'binman': ''},
       package_data={'binman': ['README.rst', 'entries.rst']},
       classifiers=['Environment :: Console',