test/py: Setup variables based on HUSH selection

After adding our small zynq uboot which has hush parser off same
variable tests start to failed. Use quotes only when hush is enabled.

Reported-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

test/py/tests/test_env.py

@@ -125,7 +125,16 @@ def set_var(state_test_env, var, value):
         Nothing.
     """
 
-    state_test_env.u_boot_console.run_command('setenv %s "%s"' % (var, value))
+    bc = state_test_env.u_boot_console.config.buildconfig
+    if bc.get('config_hush_parser', None):
+        quote = '"'
+    else:
+        quote = ''
+        if ' ' in value:
+            pytest.skip('Space in variable value on non-Hush shell')
+
+    state_test_env.u_boot_console.run_command(
+        'setenv %s %s%s%s' % (var, quote, value, quote))
     state_test_env.env[var] = value
 
 def validate_empty(state_test_env, var):