[coreboot] Patch merged into coreboot/master: 10c90d3 update CFLAGS for armv7

the following patch was just integrated into master:
commit 10c90d31264b5698320a1ac2666823532d110258
Author: David Hendricks 
Date:   Thu Dec 27 13:30:55 2012 -0800

update CFLAGS for armv7

This updates $CFLAGS used for armv7. Most of them were just added
    to be consistent with what u-boot does. The important ones here
    are -march=armv7-a and -mthumb (to allow 16-bit Thumb instructions).

I removed the hard float support because it got errors and
    coreboot should never use floats anyway. We're still having trouble
    with enums but I want to see how far it gets with this patch.

Also, put the flags in a form that makes diffs easier to read. It's
    almost impossible otherwise.

Finally, move some flags to the architecture Makefile, and
    rely on the fact that some are set for all architectures.

Depends-On: I6f730d017391f9ec4401cdfd34931c869df10a9e
    Change-Id: Ia8a1ae22959933e06f7b996d1832cea40819f1ff
    Signed-off-by: David Hendricks 
    Signed-off-by: Ronald G. Minnich 
    Reviewed-on: http://review.coreboot.org/2075
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

Build-Tested: build bot (Jenkins) at Fri Jan  4 00:45:50 2013, giving +1
Reviewed-By: Stefan Reinauer  at Fri Jan  4 00:48:12 2013, giving +2
See http://review.coreboot.org/2075 for details.

-gerrit