Patch merged into coreboot/master: lb_tables: make lb_mainboard and lb_strings record sizes 64-bit aligned

the following patch was just integrated into master:
commit 23bb036dcb76c30efa708f09a96184583cc367d1
Author: Ronald G. Minnich 
Date:   Tue Jan 17 23:20:48 2017 -0800

lb_tables: make lb_mainboard and lb_strings record sizes 64-bit aligned

They were sized to 32-bit alignment, this grows them to 64 bit-aligned.

Change-Id: I494b942c4866a7912fb48a53f9524db20ac53a8c
    Signed-off-by: Ronald G. Minnich 
    Reviewed-on: https://review.coreboot.org/18165
    Tested-by: build bot (Jenkins)
    Tested-by: Raptor Engineering Automated Test Stand 
    Reviewed-by: Stefan Reinauer 
    Reviewed-by: Martin Roth

See https://review.coreboot.org/18165 for details.

-gerrit