Removed node reset from doReset and moved it into dedicated function

A "normal" error reset should not trigger a node reset. However, this
option is still available via a dedicated PV xx:NodeReset and a
corresponding function in masterMacsAxis.

src/masterMacsAxis.cpp

@@ -811,6 +811,17 @@ asynStatus masterMacsAxis::doReset() {
         setAxisParamChecked(this, motorStatusProblem, true);
     }
 
+    // Move out of the handshake wait loop, if we're currently inside it.
+    pMasterMacsA_->waitForHandshake = false;
+
+    // Disable the axis
+    return enable(false);
+}
+
+asynStatus masterMacsAxis::nodeReset() {
+
+    asynStatus status = asynSuccess;
+
     // Reset any errors in the controller. Since the node reset results in a
     // power cycle, we use the corresponding timeout.
     status = pC_->write(axisNo_, 17, "", PowerCycleTimeout);