crossystem: arm: reland nvstorage using flashrom

This relands CL:2218891, which was reverted as the "mkbp" case was
forgotten, and lit all sorts of stuff on fire when the CQ skipped
hardware tests and the lab was accidentally soaked in gasoline.

The devices which this affected are re-enabled in the lab, the CQ is
now configured to enable hardware tests, so let's land it again ;)

TEST=On scarlet and nyan_kitty, read and write using crossystem

Change-Id: Ife4d17eeca484a2784f7e2b2f7c22fef27b9d083
Signed-off-by: Jack Rosenthal <>
Reviewed-by: Joel Kitching <>
1 file changed