RFR 8214513: A PKCS12 keystore from Java 8 using custom PBE parameters cannot be read in Java 11

[Weijun Wang]

Please take a review at

   https://cr.openjdk.java.net/~weijun/8214513/webrev.00/

It's now able to read the wrong PBES2-params encoding created by JDK before JDK 11.

Thanks
Max