RFR : 8046588 8047187

[Seán Coffey]

Following bugs need to be backported to jdk7u-dev to correct issues 
where SO_FLOW_SLA availability might not be available or where 
sufficient permissions are not in place.

https://jbs.oracle.com/bugs/browse/JDK-8046588
https://jbs.oracle.com/bugs/browse/JDK-8047187

Testcase changes keep to the same theme as the JDK 8u fix but are in 
non-lambda format.
webrev : 
http://cr.openjdk.java.net/~coffeys/webrev.8046588.8047187.7u/webrev/

Re-tested on a solaris box with SO_FLOW_SLA enabled and all was green. 
JPRT results are green also.

regards,
Sean.