servo: Use servo_pd_comm control for servo_v4(p1)

BUG=None
TEST=None

Change-Id: Ia1968fb80b5f73a58ad9a2488e788ffa7b984bcb
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/2904821
Reviewed-by: Ruben Rodriguez Buchillon <coconutruben@chromium.org>
Commit-Queue: Ruben Rodriguez Buchillon <coconutruben@chromium.org>
Tested-by: Ruben Rodriguez Buchillon <coconutruben@chromium.org>
diff --git a/server/cros/servo/servo.py b/server/cros/servo/servo.py
index 39c9be6..b3dd97d 100644
--- a/server/cros/servo/servo.py
+++ b/server/cros/servo/servo.py
@@ -1653,7 +1653,7 @@
         @param en: a string of 'on' or 'off' for PD communication.
         """
         if self.get_servo_type().startswith('servo_v4'):
-            self.set_nocheck('servo_v4_pd_comm', en)
+            self.set_nocheck('servo_pd_comm', en)
         else:
             logging.debug('Not a servo v4, unable to set PD comm to %s.', en)