RFR: JDK-8153294: Solaris devkit uses linker from system instead of in devkit

[Erik Joelsson]

The current devkit I created for Solaris has a flaw in that CC will 
still call the system linker instead of the one in the devkit. I have 
finally figured out a solution for this, while working on the next 
devkit with upgraded compiler versions, but this fix has value on its 
own so I decided to update the existing one for 11 immediately.

The devkit is changed to include the relevant executables as well as the 
specific libs they need, arranged in such a way so that the existing 
runpaths in the executables match the relative paths of the libs. In 
configure, I added a check for ld in the devkit and add the necessary 
flag to SYSROOT_LDFLAGS if found.

Bug: https://bugs.openjdk.java.net/browse/JDK-8153294

Webrev: http://cr.openjdk.java.net/~erikj/8153294/webrev.01/

/Erik