test/py: Drop assigning ubman to cons

Now that we have a shorter name, we don't need this sort of thing. Just
use ubman instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/py/tests/test_fit_hashes.py b/test/py/tests/test_fit_hashes.py
index bcde045..07bf0fd 100644
--- a/test/py/tests/test_fit_hashes.py
+++ b/test/py/tests/test_fit_hashes.py
@@ -26,20 +26,20 @@
 
 class ReadonlyFitImage(object):
     """ Helper to manipulate a FIT image on disk """
-    def __init__(self, cons, file_name):
+    def __init__(self, ubman, file_name):
         self.fit = file_name
-        self.cons = cons
+        self.ubman = ubman
         self.hashable_nodes = set()
 
     def __fdt_list(self, path):
-        return utils.run_and_log(self.cons, f'fdtget -l {self.fit} {path}')
+        return utils.run_and_log(self.ubman, f'fdtget -l {self.fit} {path}')
 
     def __fdt_get(self, node, prop):
-        val = utils.run_and_log(self.cons, f'fdtget {self.fit} {node} {prop}')
+        val = utils.run_and_log(self.ubman, f'fdtget {self.fit} {node} {prop}')
         return val.rstrip('\n')
 
     def __fdt_get_sexadecimal(self, node, prop):
-        numbers = utils.run_and_log(self.cons,
+        numbers = utils.run_and_log(self.ubman,
                                     f'fdtget -tbx {self.fit} {node} {prop}')
 
         sexadecimal = ''
@@ -86,17 +86,16 @@
 
     def assemble_fit_image(dest_fit, its, destdir):
         dtc_args = f'-I dts -O dtb -i {destdir}'
-        utils.run_and_log(cons, [mkimage, '-D', dtc_args, '-f', its, dest_fit])
+        utils.run_and_log(ubman, [mkimage, '-D', dtc_args, '-f', its, dest_fit])
 
     def dtc(dts):
         dtb = dts.replace('.dts', '.dtb')
-        utils.run_and_log(cons,
+        utils.run_and_log(ubman,
                           f'dtc {datadir}/{dts} -O dtb -o {tempdir}/{dtb}')
 
-    cons = ubman
-    mkimage = cons.config.build_dir + '/tools/mkimage'
-    datadir = cons.config.source_dir + '/test/py/tests/vboot/'
-    tempdir = os.path.join(cons.config.result_dir, 'hashes')
+    mkimage = ubman.config.build_dir + '/tools/mkimage'
+    datadir = ubman.config.source_dir + '/test/py/tests/vboot/'
+    tempdir = os.path.join(ubman.config.result_dir, 'hashes')
     os.makedirs(tempdir, exist_ok=True)
 
     fit_file = f'{tempdir}/test.fit'
@@ -108,7 +107,7 @@
 
     assemble_fit_image(fit_file, f'{datadir}/hash-images.its', tempdir)
 
-    fit = ReadonlyFitImage(cons, fit_file)
+    fit = ReadonlyFitImage(ubman, fit_file)
     nodes = fit.find_hashable_image_nodes()
     if len(nodes) == 0:
         raise ValueError('FIT image has no "/image" nodes with "hash-..."')