hg: build-infra/jdk9/hotspot: Add proper copyright header to symbol files.

[magnus.ihse.bursie at oracle.com]

Changeset: bbaddb92605c
Author:    ihse
Date:      2016-02-08 14:09 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk9/hotspot/rev/bbaddb92605c

Add proper copyright header to symbol files.

! makefiles/symbols/symbols-aix
! makefiles/symbols/symbols-aix-debug
! makefiles/symbols/symbols-linux
! makefiles/symbols/symbols-macosx
! makefiles/symbols/symbols-shared
! makefiles/symbols/symbols-solaris
! makefiles/symbols/symbols-solaris-dtrace-compiler1
! makefiles/symbols/symbols-solaris-dtrace-compiler2
! makefiles/symbols/symbols-unix