[coreboot-gerrit] Change in coreboot[master]: fw_config: Default to undefined fw_config value

[Tim Wawrzynczak (Code Review)]

Tim Wawrzynczak has uploaded a new patch set (#2). ( https://review.coreboot.org/c/coreboot/+/47956 )

Change subject: fw_config: Default to undefined fw_config value
......................................................................

fw_config: Default to undefined fw_config value

If for some reason a value for fw_config cannot be located, set its
value to a magic undefined value. The current `fw_config_probe` function
is modified to return true if fw_config is undefined, and a new function
`fw_config_probe_nodefault` is added which will return false if the
fw_config value is undefined. A new Kconfig option is added,
FW_CONFIG_IGNORE_UNDEFINED (defaults to n), which controls the behavior
of fw_config probing the devicetree.

Signed-off-by: Tim Wawrzynczak 
Change-Id: Ib3046233667e97a5f78961fabacbeb3099b3d442
---
M src/Kconfig
M src/include/fw_config.h
M src/lib/fw_config.c
3 files changed, 44 insertions(+), 6 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/56/47956/2