[coreboot-gerrit] Change in coreboot[master]: mb/intel/shadowmountain: Add flash layout

[V Sowmya (Code Review)]

Attention is currently required from: Paul Menzel, Sugnan Prabhu S, Tim Wawrzynczak, Balaji Manigandan, Aamir Bohra.
V Sowmya has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/49478 )

Change subject: mb/intel/shadowmountain: Add flash layout
......................................................................

Patch Set 4:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/49478/comment/c7f67284_36dee8a6 
PS3, Line 7:  for shadowmountain
> Already part of the prefix.

Done

https://review.coreboot.org/c/coreboot/+/49478/comment/4ac54c7a_513deff6 
PS3, Line 9: This patch adds the flash layout for shadowmountain.
> You could mention the parts, and if you copied it from somewhere.

This adds the flash layout and its is aligned for shadowmountain board