xcompile: fill in power8 64bit LE

Change-Id: Id0316042f665ec9c095887cf6a37a7949ed8e861
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/13421
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
1 file changed