Makefile: Don't hide the "prebuilt" kernel

The pass 1 linkage on x86 produces a real intermediate file that users
might plausibly want to inspect.  There's no reason to give it a
hidden file name or call it "temporary".  Show it off.

Change-Id: I606ee41f7f106ddd00474cdebe7803bcfb01889d
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
1 file changed