RFR: JDK-8220737: Jib based 32 bit windows builds fail

[Erik Joelsson]

My recent change for gcc8.2 changed the naming convention for devkits in 
jib-profiles.js (used for builds at Oracle). This messed up the rare 
occasions when we configure for a 32bit windows target. This patch fixes 
that situation specifically for windows 32/64 where we use the same devkit.

Bug: https://bugs.openjdk.java.net/browse/JDK-8220737

Webrev: http://cr.openjdk.java.net/~erikj/8220737/webrev.01

/Erik