RFR [9] 8173708: Re-enable AES cipher with CFB128 mode for Ucrypto provider

[Valerie Peng]

Hi Brad,

Would you have time to review this trivial Ucrypto config file update?
It's related to the Solaris fix that you relayed to me.
Given that some of our test machines may still run pre-S11.3 releases 
and that JDK 9 is already at Rampdown 1 phase, I updated the test to 
ignore the exception for CFB128 mode to minimize the possible impact of 
re-enabling these Ucrypto algorithms.

Webrev: http://cr.openjdk.java.net/~valeriep/8173708/webrev.00/

Thanks,
Valerie