test/py: Shorten u_boot_console

This fixture name is quite long and results in lots of verbose code.
We know this is U-Boot so the 'u_boot_' part is not necessary.

But it is also a bit of a misnomer, since it provides access to all the
information available to tests. It is not just the console.

It would be too confusing to use con as it would be confused with
config and it is probably too short.

So shorten it to 'ubman'.

Signed-off-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/u-boot/CAFLszTgPa4aT_J9h9pqeTtLCVn4x2JvLWRcWRD8NaN3uoSAtyA@mail.gmail.com/
diff --git a/test/py/tests/test_extension.py b/test/py/tests/test_extension.py
index 2a3c511..d0840f7 100644
--- a/test/py/tests/test_extension.py
+++ b/test/py/tests/test_extension.py
@@ -13,43 +13,43 @@
 SANDBOX_DTB='arch/sandbox/dts/sandbox.dtb'
 OVERLAY_DIR='arch/sandbox/dts/'
 
-def load_dtb(u_boot_console):
-    u_boot_console.log.action('Loading devicetree to RAM...')
-    u_boot_console.run_command('host load hostfs - $fdt_addr_r %s' % (os.path.join(u_boot_console.config.build_dir, SANDBOX_DTB)))
-    u_boot_console.run_command('fdt addr $fdt_addr_r')
+def load_dtb(ubman):
+    ubman.log.action('Loading devicetree to RAM...')
+    ubman.run_command('host load hostfs - $fdt_addr_r %s' % (os.path.join(ubman.config.build_dir, SANDBOX_DTB)))
+    ubman.run_command('fdt addr $fdt_addr_r')
 
 @pytest.mark.buildconfigspec('cmd_fdt')
 @pytest.mark.boardspec('sandbox')
-def test_extension(u_boot_console):
+def test_extension(ubman):
     """Test the 'extension' command."""
 
-    load_dtb(u_boot_console)
+    load_dtb(ubman)
 
-    output = u_boot_console.run_command('extension list')
+    output = ubman.run_command('extension list')
     # extension_bootdev_hunt may have already run.
     # Without reboot we cannot make any assumption here.
     # assert('No extension' in output)
 
-    output = u_boot_console.run_command('extension scan')
+    output = ubman.run_command('extension scan')
     assert output == 'Found 2 extension board(s).'
 
-    output = u_boot_console.run_command('extension list')
+    output = ubman.run_command('extension list')
     assert('overlay0.dtbo' in output)
     assert('overlay1.dtbo' in output)
 
-    u_boot_console.run_command_list([
+    ubman.run_command_list([
         'setenv extension_overlay_addr %s' % (overlay_addr),
-        'setenv extension_overlay_cmd \'host load hostfs - ${extension_overlay_addr} %s${extension_overlay_name}\'' % (os.path.join(u_boot_console.config.build_dir, OVERLAY_DIR))])
+        'setenv extension_overlay_cmd \'host load hostfs - ${extension_overlay_addr} %s${extension_overlay_name}\'' % (os.path.join(ubman.config.build_dir, OVERLAY_DIR))])
 
-    output = u_boot_console.run_command('extension apply 0')
+    output = ubman.run_command('extension apply 0')
     assert('bytes read' in output)
 
-    output = u_boot_console.run_command('fdt print')
+    output = ubman.run_command('fdt print')
     assert('button3' in output)
 
-    output = u_boot_console.run_command('extension apply all')
+    output = ubman.run_command('extension apply all')
     assert('bytes read' in output)
 
-    output = u_boot_console.run_command('fdt print')
+    output = ubman.run_command('fdt print')
     assert('button4' in output)