Code review request, 8028518, Increase the priorities of GCM cipher suites

[Xuelei Fan]

Hi,

Please review this small update.

webrev: http://cr.openjdk.java.net/~xuelei/8028518/webrev.00/

In TLS protocols, cipher suite specifies the crypto algorithms used in 
TLS connections.  The priorities of cipher suites define the preference 
order that a cipher suite may be used in a TLS connection.

When introducing the AEAD/GCM cipher suites in SunJSSE provider (JEP 
115)[1], for better compatibility and interoperability, we decided to 
decrease the priority of cipher suites in GCM mode for a while before 
GCM technologies mature in the industry.

It's time to consider to increase the priorities of GCM mode cipher 
suite in early stage of JDK 9.

Thanks,
Xuelei

[1] http://openjdk.java.net/jeps/115