Patch merged into coreboot/master: 196ee2b coreboot memrange: Two changes for zero size or empty memrange

the following patch was just integrated into master:
commit 196ee2b029349588d1cac4f01c4e1b92f9dd8447
Author: Furquan Shaikh 
Date:   Fri Jul 18 10:25:54 2014 -0700

coreboot memrange: Two changes for zero size or empty memrange

1) Add check for zero size in memrange.
    2) Add public memrange_init_empty function to allow initializing only the
    memrange structure without filling in device resources

BUG=None
    BRANCH=None
    TEST=Compiles and runs succesfully for rush MMU memranges.

Original-Change-Id: I8e4d864cbc9a770cd208f8a9f83f509dc7ace894
    Original-Signed-off-by: Furquan Shaikh 
    Original-Reviewed-on: https://chromium-review.googlesource.com/208957
    Original-Tested-by: Furquan Shaikh 
    Original-Reviewed-by: Aaron Durbin 
    Original-Commit-Queue: Furquan Shaikh 
    (cherry picked from commit 5c42301c2a51a1a2a29ef58012f210d03bd37f94)
    Signed-off-by: Marc Jones

Change-Id: I8d63abb15efda74270ef6fa3c0df55c05659595d
    Reviewed-on: http://review.coreboot.org/8597
    Tested-by: build bot (Jenkins)
    Reviewed-by: Kyösti Mälkki

See http://review.coreboot.org/8597 for details.

-gerrit