cgpt: create: Don't modify existing IGNOREME headers

Respect any existing IGNOREME signatures and do not attempt to make any
modifications until a user has explicitly removed this flag via cgpt
legacy or other method.

TEST=chromeos-install on veyron_minnie with 4.19 kernel

Change-Id: I110a95ee0c136ebbe2274139deebcaacde712e80
Signed-off-by: Ryan Case <>
Commit-Ready: Ryan Case <>
Tested-by: Ryan Case <>
Reviewed-by: Julius Werner <>
1 file changed