Patch merged into coreboot/master: CPU: Declare cpu_phys_address_size() for all arch

the following patch was just integrated into master:
commit 140087f84fbed117686c15e9d0c7c6921d494059
Author: Kyösti Mälkki 
Date:   Tue Dec 6 14:00:05 2016 +0200

CPU: Declare cpu_phys_address_size() for all arch

Resource allocator and 64-bit PCI BARs will need it and
    PCI use is not really restricted to x86.

Change-Id: Ie97f0f73380118f43ec6271aed5617d62a4f5532
    Signed-off-by: Kyösti Mälkki 
    Reviewed-on: https://review.coreboot.org/17733
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin

See https://review.coreboot.org/17733 for details.

-gerrit