Patch merged into coreboot/master: 5f19eb6 ec: Use DEVICE_NOOP macro formalism over static stub func

the following patch was just integrated into master:
commit 5f19eb6f402e3fa5c095d275f6483cf61edfb59b
Author: Edward O'Callaghan 
Date:   Sat Nov 29 00:03:03 2014 +1100

ec: Use DEVICE_NOOP macro formalism over static stub func

The in source comment:

/* This function avoids an error on serial console. */

refers to the resource allocator needing to find a non-NULL
    function pointer else complaints of "... missing read_resources"
    will be spewed.

Unfortunately/fortunately (depending on the time of day) compiler
    optimisers have gotten a bit better at optimising away no-op functions
    leading to the very message these stubs attempted to avoid. By using
    the DEVICE_NOOP formalism that is static inlined 'suggests' (not enforces)
    to the compiler to keep these symbols around.

Change-Id: I182019627b6954a4020f9f70e9c829ce3135f63c
    Signed-off-by: Edward O'Callaghan 
    Reviewed-on: http://review.coreboot.org/7598
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See http://review.coreboot.org/7598 for details.

-gerrit