Move init.S to a proper filename

Also, remove unnecessary junk and prepare for future build changes.

Change-Id: I143777ec7e67ea4d6fed00084aafcb94c7866b4d
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2141
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
2 files changed