Change in coreboot[master]: util/ifdtool: Add an option to set top swap block size

[Krishna P Bhat D (Code Review)]

Attention is currently required from: Stefan Reinauer, Rizwan Qureshi, Meera Ravindranath, Sridhar Siricilla, Krishna P Bhat D.
Hello build bot (Jenkins), Jamie Ryu, Stefan Reinauer, Rizwan Qureshi, Sugnan Prabhu S, Sridhar Siricilla,

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

https://review.coreboot.org/c/coreboot/+/48471

to look at the new patch set (#10).

Change subject: util/ifdtool: Add an option to set top swap block size
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util/ifdtool: Add an option to set top swap block size

Add an option '-j' which takes the size of top swap boundary. This
option takes the top swap block size and sets the value in descriptor
when a second bootblock is to be used with top swap feature in Intel CPUs.

BUG=None
BRANCH=None
TEST=Set topswap block size and check the offset to determine it is
correctly set.
Usage: ifdtool -p <platform> -j <top swap block size>
ifdtool -p jsl -j 0x10000
hexdump image-drawcia.bin.new
0000140 0000 c880 8645 0600 0000 0000 0204 0058
ifdtool -p jsl -j 0x20000
hexdump image-drawcia.bin.new
0000140 0010 c880 8645 0600 0000 0000 0204 0058
ifdtool -p jsl -j 0x20000
hexdump image-drawcia.bin.new
0000140 0020 c880 8645 0600 0000 0000 0204 0058
ifdtool -p jsl -j 0x20000
hexdump image-drawcia.bin.new
0000140 0030 c880 8645 0600 0000 0000 0204 0058
ifdtool -p jsl -j 0x100000
hexdump image-drawcia.bin.new
0000140 0040 c880 8645 0600 0000 0000 0204 0058

Change-Id: I291e5f8443f00ae9a11096c13073ad4dea887fe5
Signed-off-by: Krishna Prasad Bhat 
---
M util/ifdtool/ifdtool.c
M util/ifdtool/ifdtool.h
2 files changed, 121 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/71/48471/10