Improve javadoc for all addons (#15667)

Signed-off-by: Holger Friedrich <mail@holger-friedrich.de>

bundles/org.openhab.binding.phc/src/main/java/org/openhab/binding/phc/internal/PHCBindingConstants.java

@@ -16,7 +16,7 @@ import org.eclipse.jdt.annotation.NonNullByDefault;
 import org.openhab.core.thing.ThingTypeUID;
 
 /**
- * The {@link PHCBinding} class defines common constants, which are used across
+ * The {@link PHCBindingConstants} class defines common constants, which are used across
  * the whole binding.
  *
  * @author Jonas Hohaus - Initial contribution

bundles/org.openhab.binding.phc/src/main/java/org/openhab/binding/phc/internal/PHCHelper.java

@@ -44,7 +44,7 @@ public class PHCHelper {
     /**
      * Convert the byte b into a binary String
      *
-     * @param b
+     * @param bytes
      * @return
      */
     public static Object bytesToBinaryString(byte[] bytes) {