[MINOR] improvement: Fix the typo in ConfigEntry.java (apache#3860)

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### What changes were proposed in this pull request?

orignal -> original

core/src/main/java/com/datastrato/gravitino/config/ConfigEntry.java

@@ -140,7 +140,7 @@ public ConfigEntry<T> checkValue(Function<T, Boolean> checkValueFunc, String err
    * Split the string to a list, then map each string element to its converted form.
    *
    * @param str The string form of the value list from the conf entry.
-   * @param converter The orignal ConfigEntry valueConverter.
+   * @param converter The original ConfigEntry valueConverter.
    * @return The list of converted type.
    */
   public List<T> strToSeq(String str, Function<String, T> converter) {
@@ -154,7 +154,7 @@ public List<T> strToSeq(String str, Function<String, T> converter) {
    * Reduce the values then join them as a string.
    *
    * @param seq The sequence of the value list from the conf entry.
-   * @param converter The orignal ConfigEntry stringConverter.
+   * @param converter The original ConfigEntry stringConverter.
    * @return The converted string.
    */
   public String seqToStr(List<T> seq, Function<T, String> converter) {