[mac_frame] process the key id mode 2 only when the wakeup coordinato…

…r is enabled (openthread#11047)

The wakeup frame is sent from the wakeup coordinator rather than the
wakeup end device.  Current code processes the key id mode 2 only when
the device is the wakeup end device.  This commit corrects this issue.

examples/platforms/utils/mac_frame.cpp

@@ -319,7 +319,7 @@ otError otMacFrameProcessTransmitSecurity(otRadioFrame *aFrame, otRadioContext *
     bool              processKeyId;
 
     processKeyId =
-#if OPENTHREAD_CONFIG_WAKEUP_END_DEVICE_ENABLE
+#if OPENTHREAD_CONFIG_WAKEUP_COORDINATOR_ENABLE
         otMacFrameIsKeyIdMode2(aFrame) ||
 #endif
         otMacFrameIsKeyIdMode1(aFrame);