Change in coreboot[master]: amdfwtool: Add a way to detect the file name with absolute path

[Bao Zheng (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Martin Roth, Marshall Dawson, Zheng Bao, Fred Reitberger, Felix Held.
Hello Jason Glenesk, build bot (Jenkins), Raul Rangel, Martin Roth, Marshall Dawson, Zheng Bao, Fred Reitberger, Felix Held,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/61971

to look at the new patch set (#4).

Change subject: amdfwtool: Add a way to detect the file name with absolute path
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amdfwtool: Add a way to detect the file name with absolute path

Here is the example to add a file which is not in the default path.
--------------
XXXXX_FILE 3rdparty/blobs/mainboard/google/guybrush/TypeId0xXXX.sbin
----------------
If the filename has a '/', we will treat it as an absolute (to top)
path.

Change-Id: Ia8e40e445556b972f3b00a0dfcc07b1512308177
Signed-off-by: Zheng Bao 
---
M Makefile.inc
M src/soc/amd/cezanne/Makefile.inc
M src/soc/amd/picasso/Makefile.inc
M src/soc/amd/sabrina/Makefile.inc
M src/soc/amd/stoneyridge/Makefile.inc
M src/southbridge/amd/pi/hudson/Makefile.inc
M util/amdfwtool/data_parse.c
7 files changed, 30 insertions(+), 8 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/71/61971/4