RFR (S): 8214850: Rename vm_operations* to vmOperations*

[Thomas Schatzl]

Hi all,

  can I have reviews for this change that renames the vm_operations
files to vmOperations?

This has been requested in the JDK-8214791 review but I did not want to
merge these.

CR:
https://bugs.openjdk.java.net/browse/JDK-8214850
Webrev:
http://cr.openjdk.java.net/~tschatzl/8214850/webrev/
Testing:
build on all (Oracle) platforms

Thanks,
  Thomas