RFR (S): 8019922 : PPC64 (part 8): Implement Linux/PPC64 support in HotSpot makefiles

[Volker Simonis]

Hi,

can sombody please review this change. It implements the relevant
HotSpot make changes to build the HotSpot on Linux/PPC64 and shouldn't
touch any existing platforms (but of course testing it on your closed
platforms - especially ppc - is probably necessary and much
appreciated).

It also contains two small fixes for the CORE build (one is a type and
the other is necessary to accomodate to the changes in "8008772:
remove gamma launcher") in 'make/Makefile' for which I didn't wanted
to open an extra bug for.

Notice that this patch determines the name and location of the
platform relevant files (e.g. src/cpu/ppc/vm/assembler_ppc.cpp or
src/os_cpu/linux_ppc/vm/globals_linux_ppc.hpp) which will come with
0009_linux_ppc_files.patch.

http://cr.openjdk.java.net/~simonis/webrevs/8019922/

Thank you and best regards,
Volker