RFR 8046002: Move Ucrypto to the open jdk repo

[Valerie Peng]

Hi, Sean,

Could you please review the changes for 8046002: Move Ucrypto to the 
open jdk repo?
Once you reviewed it, I will request a review from the build team since 
there are build-related changes.

Bug: https://bugs.openjdk.java.net/browse/JDK-8046002
Webrev: http://cr.openjdk.java.net/~valeriep/8046002/webrev.00/
CCC: http://ccc.us.oracle.com/8046002

Thanks,
Valerie