Patch merged into coreboot/master: crossgcc: Fix x86_64-elf target's -m16 support

the following patch was just integrated into master:
commit 505e609452b66df78c213a4ff0eac24f52edb577
Author: Patrick Georgi 
Date:   Thu Aug 20 17:53:52 2015 +0200

crossgcc: Fix x86_64-elf target's -m16 support

It still needs to pass --32 (yes, 32) to the assembler.
    x86_64-linux does this (through some other config file),
    x86_64-elf did not.

This fixes building SeaBIOS with our x86_64-elf multilib compiler.

Change-Id: Ibe2a70e46e64e71c947482be5ec0eaf7f7bf300d
    Signed-off-by: Patrick Georgi 
    Reviewed-on: http://review.coreboot.org/11289
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See http://review.coreboot.org/11289 for details.

-gerrit