[Keyboard] update Wasdat custom matrix (#6247)

* Fix unselect_rows() for Wasdat custom matrix

* Add fix for matrix_scan() return too (#5984)

keyboards/wasdat/matrix.c

@@ -183,7 +183,7 @@ static void unselect_row(uint8_t row)
 static void unselect_rows(void)
 {
     for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
-        setPinInput(row_pins[x]);
+        setPinInputHigh(row_pins[x]);
     }
 }
 
@@ -480,5 +480,5 @@ uint8_t matrix_scan(void)
   debounce(raw_matrix, matrix, MATRIX_ROWS, changed);
 
   matrix_scan_quantum();
-  return 1;
+  return (uint8_t)changed;
 }