UPSTREAM: arch/x86: Generate a map file for the postcar stage

Place a map file for the postcar stage and place it into
build/cbfs/fallback.

TEST=Build and run on Galileo Gen2

Change-Id: I349c06e3c610db5b3f2511083208db27110c34d0
Original-Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Original-Reviewed-on: https://review.coreboot.org/15845
Original-Tested-by: build bot (Jenkins)
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/363390
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
1 file changed