Fix DigitalOutputs writeAll function logical operator

Author: kevmk04

src/DigitalOutputsClass.cpp

@@ -77,7 +77,7 @@ void DigitalOutputsClass::write(uint8_t channel, PinStatus val) {
 
 void DigitalOutputsClass::writeAll(uint8_t val_mask) {
     for (uint8_t ch = 0; ch < 8; ch++) {
-        if (val_mask && (1 << ch)) {
+        if (val_mask & (1 << ch)) {
             write(ch, HIGH);
         } else {
             write(ch, LOW);
@@ -94,4 +94,4 @@ void DigitalOutputsClass::_setAutoRetryMode() {
 }
 
 DigitalOutputsClass MachineControl_DigitalOutputs;
-/**** END OF FILE ****/
+/**** END OF FILE ****/