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_dm.py b/test/py/tests/test_dm.py
index be94971..f4c2ccd 100644
--- a/test/py/tests/test_dm.py
+++ b/test/py/tests/test_dm.py
@@ -4,15 +4,15 @@
 import pytest
 
 @pytest.mark.buildconfigspec('cmd_dm')
-def test_dm_compat(u_boot_console):
+def test_dm_compat(ubman):
     """Test that each driver in `dm tree` is also listed in `dm compat`."""
-    response = u_boot_console.run_command('dm tree')
+    response = ubman.run_command('dm tree')
     driver_index = response.find('Driver')
     assert driver_index != -1
     drivers = (line[driver_index:].split()[0]
                for line in response[:-1].split('\n')[2:])
 
-    response = u_boot_console.run_command('dm compat')
+    response = ubman.run_command('dm compat')
     bad_drivers = set()
     for driver in drivers:
         if not driver in response:
@@ -29,7 +29,7 @@
     # checking sorting only after UCLASS_AXI_EMUL after which the names should
     # be sorted.
 
-    response = u_boot_console.run_command('dm tree -s')
+    response = ubman.run_command('dm tree -s')
     lines = response.split('\n')[2:]
     stack = []   # holds where we were up to at the previous indent level
     prev = ''    # uclass name of previous line
@@ -58,27 +58,27 @@
 
 
 @pytest.mark.buildconfigspec('cmd_dm')
-def test_dm_drivers(u_boot_console):
+def test_dm_drivers(ubman):
     """Test that each driver in `dm compat` is also listed in `dm drivers`."""
-    response = u_boot_console.run_command('dm compat')
+    response = ubman.run_command('dm compat')
     drivers = (line[:20].rstrip() for line in response[:-1].split('\n')[2:])
-    response = u_boot_console.run_command('dm drivers')
+    response = ubman.run_command('dm drivers')
     for driver in drivers:
         assert driver in response
 
 @pytest.mark.buildconfigspec('cmd_dm')
-def test_dm_static(u_boot_console):
+def test_dm_static(ubman):
     """Test that each driver in `dm static` is also listed in `dm drivers`."""
-    response = u_boot_console.run_command('dm static')
+    response = ubman.run_command('dm static')
     drivers = (line[:25].rstrip() for line in response[:-1].split('\n')[2:])
-    response = u_boot_console.run_command('dm drivers')
+    response = ubman.run_command('dm drivers')
     for driver in drivers:
         assert driver in response
 
 @pytest.mark.buildconfigspec("cmd_dm")
-def test_dm_uclass(u_boot_console):
-    response = u_boot_console.run_command("dm uclass")
+def test_dm_uclass(ubman):
+    response = ubman.run_command("dm uclass")
 
 @pytest.mark.buildconfigspec("cmd_dm")
-def test_dm_devres(u_boot_console):
-    response = u_boot_console.run_command("dm devres")
+def test_dm_devres(ubman):
+    response = ubman.run_command("dm devres")